Anyways, I have been doing them for the last couple of days and this is just a short guide on how to get a lot of the easily.
I'll break them down into their categories. And then I'll try and streamline them so you can get more of them at once from different categories or sub categories. A lot of these can overlap and this daunting task can be reduced down dramatically.
(the number in front of each achievement is the amount of points you receive for the completion of the following sentence.)
Liberty Campaign:
Empty until release.
Exploration:
+ Show Spoiler +
Guide One: 40
10-Win 3 Co-Op vs AI Games.
10-Win 3 1v1 AI Games.
20-Complete guide 1 = Tiger Marine Icon.
Guide Two: 60
10-Win 3 1v1 AI Games as Terran.
10-Win 3 1v1 AI Games as Protoss.
10-Win 3 1v1 AI Games as Zerg.
10-Qualify for Quick Match League (I assume this is just play the 5 placement matches in 1v1, 2v2, 3v3, or 4v4).
20-Complete guide 1 = Panda Marine Icon.
Guide Three: 60
10-Play a replay (lol)
10-Win 5 Team Quick Match Games.
10-Win 5 Solo Quick Match Games.
10-Kill 100 units in FFA Games.
20-Complete guide 1 = Wolf Marine Icon.
10-Win 3 Co-Op vs AI Games.
10-Win 3 1v1 AI Games.
20-Complete guide 1 = Tiger Marine Icon.
Guide Two: 60
10-Win 3 1v1 AI Games as Terran.
10-Win 3 1v1 AI Games as Protoss.
10-Win 3 1v1 AI Games as Zerg.
10-Qualify for Quick Match League (I assume this is just play the 5 placement matches in 1v1, 2v2, 3v3, or 4v4).
20-Complete guide 1 = Panda Marine Icon.
Guide Three: 60
10-Play a replay (lol)
10-Win 5 Team Quick Match Games.
10-Win 5 Solo Quick Match Games.
10-Kill 100 units in FFA Games.
20-Complete guide 1 = Wolf Marine Icon.
Custom Game:
+ Show Spoiler +
Medium: 200
10-Win 10 1v1s as Terran vs Computer
10-Win 10 1v1s as Zerg vs Computer
10-Win 10 1v1s as Protoss vs Computer
10-Win 10 1v1s as Random vs Computer
20-Win 100 1v1s as Every Race Option vs Computer
Medium
Hard
Very Hard
Insane:
10-Win an FFA vs 7 computers. (unlocks Orlan Icon for Insane)
10-Win a 1v1 vs a computer in under 5 minutes.
Hard 120
Very Hard 120
Insane: 120
10-Win 10 1v1s as any race vs computer.
10-Win a 3v3 Co-Op using every race vs computers.
10-Win a 3v3 Co-Op against every race vs computers.
10-Win 3 4v4 Co-Op where everyone is using the same race (you must win as ZZZZ, TTTT, and PPPP to complete).
10-Win 3 4v4 Co-Op where the computers are the same race
(you must win when they are ZZZZ, TTTT, and PPPP to complete).
20-Win 100 1v1s vs Computer as any race.
Outmatched 2: 120
Medium
Hard
Very Hard
Insane:
10-Win a 1v2 vs Computers of any race with any race.
Outmatched 3:
Medium
Hard
Very Hard:
10-Win a 1v3 vs Computers of any race with any race.
(beating this will not trigger OM2)
Outmatched 4:
Medium
Hard
Very Hard:
10-Win a 1v4 vs Computers of any race with any race.
(beating this will not trigger OM2 or OM3)
20-Complete all OM tasks.
10-Win 10 1v1s as Terran vs Computer
10-Win 10 1v1s as Zerg vs Computer
10-Win 10 1v1s as Protoss vs Computer
10-Win 10 1v1s as Random vs Computer
20-Win 100 1v1s as Every Race Option vs Computer
Medium
Hard
Very Hard
Insane:
10-Win an FFA vs 7 computers. (unlocks Orlan Icon for Insane)
10-Win a 1v1 vs a computer in under 5 minutes.
Hard 120
Very Hard 120
Insane: 120
10-Win 10 1v1s as any race vs computer.
10-Win a 3v3 Co-Op using every race vs computers.
10-Win a 3v3 Co-Op against every race vs computers.
10-Win 3 4v4 Co-Op where everyone is using the same race (you must win as ZZZZ, TTTT, and PPPP to complete).
10-Win 3 4v4 Co-Op where the computers are the same race
(you must win when they are ZZZZ, TTTT, and PPPP to complete).
20-Win 100 1v1s vs Computer as any race.
Outmatched 2: 120
Medium
Hard
Very Hard
Insane:
10-Win a 1v2 vs Computers of any race with any race.
Outmatched 3:
Medium
Hard
Very Hard:
10-Win a 1v3 vs Computers of any race with any race.
(beating this will not trigger OM2)
Outmatched 4:
Medium
Hard
Very Hard:
10-Win a 1v4 vs Computers of any race with any race.
(beating this will not trigger OM2 or OM3)
20-Complete all OM tasks.
Cooperative:
+ Show Spoiler +
Medium 150
Hard 150
Very Hard 150
Insane: 150
10-Win 10 Co-Op games vs Computers.
10-Win 5 2v2 Co-Op games in a row vs Computers.
10-Win 5 3v3 Co-Op games in a row vs Computers.
10-Win 6 2v2 Co-Op games as every race combination vs Computers (does not include random).
10-Win 10 3v3 Co-Op games as every race combination vs Computers (does not include random).
20-Win 250 Co-Op Games, Win 15 in a row 2v2 Co-Op games, Win 15 in a row 3v3 Co-Op games.
Race A.I: 220
Medium:
10-Win 10 Co-Op Games vs Computers as Terran.
10-Win 10 Co-Op Games vs Computers as Zerg.
10-Win 10 Co-Op Games vs Computers as Protoss.
10-Win 10 Co-Op Games vs Computers as Random.
20-Win 250 Co-Op Games vs Computers as each Race Option.
Hard 150
Very Hard 150
Insane: 150
10-Win 10 Co-Op games vs Computers.
10-Win 5 2v2 Co-Op games in a row vs Computers.
10-Win 5 3v3 Co-Op games in a row vs Computers.
10-Win 6 2v2 Co-Op games as every race combination vs Computers (does not include random).
10-Win 10 3v3 Co-Op games as every race combination vs Computers (does not include random).
20-Win 250 Co-Op Games, Win 15 in a row 2v2 Co-Op games, Win 15 in a row 3v3 Co-Op games.
Race A.I: 220
Medium:
10-Win 10 Co-Op Games vs Computers as Terran.
10-Win 10 Co-Op Games vs Computers as Zerg.
10-Win 10 Co-Op Games vs Computers as Protoss.
10-Win 10 Co-Op Games vs Computers as Random.
20-Win 250 Co-Op Games vs Computers as each Race Option.
Quick Match:
+ Show Spoiler +
Solo League: 360
10-Win 5 1v1 Games in a row.
10-Win 10 1v1 Games as Zerg.*
10-Win 10 1v1 Games as Protoss.*
10-Win 10 1v1 Games as Terran.*
10-Win 10 1v1 Games as Random.*
20-Win 1000 Games as each race option (unlocks Dark Voice)
Team League: 360
10-Win 5 Team Games in a row.
10-Win 10 Team Games as Zerg.*
10-Win 10 Team Games as Protoss.*
10-Win 10 Team Games as Terran.*
10-Win 10 Team Games as Random.*
20-Win 1000 Team Games as each race option (unlocks Predator)
Competitive: 150
10-Kill 5,000 units in FFA games.
10-Win 4 FFA games as each race option.
10-Win 5 FFA games.
10-Qualify for League Quick Matches in 1v1,2v2,3v3,& 4v4.
10-Win 6 2v2 League Matches as each Race Combination.
10-Win 10 3v3 League Matches as each Race Combination.
20-Win 800 FFA games.
Combat:
+ Show Spoiler +
Economy: 110
Zerg:
10-Morph A Lair in 285 Game seconds in a Melee Game.
10-Complete an expansion in 225 Game seconds in a Melee Game.
10-Morph in 20 Zerglings in 255 Game seconds in a Melee Game.
Protoss:
10-Warp in Twilight Council in 275 Game seconds in a Melee Game.
10-Warp in 5 Zealots in 250 Game seconds in a Melee Game.
Terran:
10-Train 10 Marines in 320 Game seconds in a Melee Game.
10-Build a Factory in 270 Game seconds in a Melee Game.
10-Repair 1,000 HP on Allied structure in a Melee Game.
Other:
10-Deplete 10 High Yield minerals in a Melee Game.
Melee: 130
Terran:
10-Save 8 Burning Structures with an SCV in a Melee Game.
Protoss:
10-Use Blink to dodge death with a Stalker in a Melee Game.
10-Using Warp Prisms, warp in 50 units in a Melee Game.
10-Kill 20 units with a single High Templar in a Melee Game.
10-Create 15 Hallucinations with a Sentry in a Melee Game.
10-Capture 50 units with a single Vortex with a Mothership in a Melee Game.
Zerg:
10-While playing as Zerg, warp in a zealot in a Melee Game. (this achievement is bugged and will not complete in any mode)
Other:
10-Dodge A Raven HSM in a Melee Game.
10-Destroy 10 Cloaked or Burrowed units in a Melee Game.
10-Kill 50 supply of units in a Melee Game.
10-Cancel a Structure that is under attack by an opponent in a Melee Game.
20-Complete all the above Melee achievements. T_T Impossible atm.
League: 290
Terran:
10-Heal 300 HP on friendly units (Queen/Medivac) in a League Game.
10-Kill 20 units with Ghost sniper rounds in a League Game.
10-Heal 5,000 HP with Medivacs in a League Game.
10-Load a dropship with a unit under attack in a League Game.
10-Kill 20 units with BattleCruiser Yamatos in a League Game.
10-Kill 6 units with a single Raven HSM in a League Game.
10-Kill 20 SCV with Raven Auto Turrets in a League Game.
10-Call down 30 MULEs in a League Game.
10-Kill 15 units with a single Ghost's Nuke in a League Game.
10-Train 9 Units Simultaneously as Terran in a League Game.
Protoss:
10-Regenerate 500 shield points on a single Immortal in a League Game.
10-Warp in 9 Units Simultaneously as Protoss in a League Game.
10-Warp in 100 units as Protoss in a League Game.
10-Absorb 1,000 Damage with Sentry Hallucination in a League Game.
Zerg:
10-Regenerate 500 HP on a single Roach in a League Game.
10-Kill 30 units with Infested Terrans in a League Game.
10-Kill 5 units with a single Neural Parasited unit using an Infestor in a League Game.
10-Morph 21 Units Simultaneously as Zerg in a League Game.
10-Create 100 Larva with Queens in a League Game.
Other:
10-Kill 5 Overseer Changelings in a League Game.
10-Kill 40 units with a single unit in a League Game.
10-Kill an Enemy HQ Structure that is under construction in a League Game.
10-Destroy 4 HQ Structures in a League Game.
10-Kill a fully loaded transport in a League Game.
10-Win a League Game without having 30 seconds of total idle worker time.
10-Hold a Xel'Naga Watch Tower for 5 Consecutive minutes in a League Game.
10-Attack for 20 seconds with no counter attacks in a League Game. (no units or structures under attack while they are attacking)
What?? No 20-Crusher League Achievement??? T_T
Feats Of Strength:
Empty until release.
*Unlocks many portraits and rewards. The number before the unit/character is the amount of wins needed to unlock.
Portraits:
+ Show Spoiler +
1v1 League:
Zerg: 10-Zergling, 25-Roach+Decal, 50-Baneling, 100-Hydralisk, 250-Queen, 500-Infestor, 750-Ulrtalisk+Decal, 1000-Kerrigan+Decal.
Protoss: 10-Zealot, 25-Stalker+Decal, 50-Pheonix, 100-Immortal, 250-Void Ray, 500-Colossus, 750-Carrier+Decal, 1000-Tassadar+Decal.
Terran: 10-Marine, 25-Marauder+Decal, 50-Medivac, 100-Tank, 250-Ghost, 500-Thor, 750-BattleCrusier+Decal, 1000-Nova+Decal.
Random: 10-Reaper, 25-Sentry+Decal, 50-Overseer, 100-Viking, 250-High Templar, 500-Mutalisk, 750-Banshee+Decal, 1000-Hybrid Destroyer+Decal
Unlock all of the above for 'The Dark Voice'.
2v2 League:
Zerg: 10-Drone, 25-Infested Colonist, 50-Infested Marine, 100-Corruptor, 250-Abberation, 500-Broodlord+Decal, 750-Overmind+Decal, 1000-Leviathan+Decal
Protoss:10-Probe, 25-Scout, 50-Urun, 100-Nyon, 250-Executor, 500- +Decal, 750- +Decal, 1000- +Decal
Terran:10-SCV, 25-Firebat, 50-Vulture, 100-Hellion, 250-Medic, 500-Spartan Company+Decal (lol browder), 750-Wraith+Decal, 1000-Diamondback+Decal
Random:10-Overlord, 25-Hydra Marine, 50-Zer'Atai Dark Templar, 100-Goliath (lol browder), 250-Lenassa Dark Templar, 500-Mira Han+Decal, 750-Archon+Decal, 1000-Hybrid Reaver+Decal
Unlock all of the above for 'Predator'.
Zerg: 10-Zergling, 25-Roach+Decal, 50-Baneling, 100-Hydralisk, 250-Queen, 500-Infestor, 750-Ulrtalisk+Decal, 1000-Kerrigan+Decal.
Protoss: 10-Zealot, 25-Stalker+Decal, 50-Pheonix, 100-Immortal, 250-Void Ray, 500-Colossus, 750-Carrier+Decal, 1000-Tassadar+Decal.
Terran: 10-Marine, 25-Marauder+Decal, 50-Medivac, 100-Tank, 250-Ghost, 500-Thor, 750-BattleCrusier+Decal, 1000-Nova+Decal.
Random: 10-Reaper, 25-Sentry+Decal, 50-Overseer, 100-Viking, 250-High Templar, 500-Mutalisk, 750-Banshee+Decal, 1000-Hybrid Destroyer+Decal
Unlock all of the above for 'The Dark Voice'.
2v2 League:
Zerg: 10-Drone, 25-Infested Colonist, 50-Infested Marine, 100-Corruptor, 250-Abberation, 500-Broodlord+Decal, 750-Overmind+Decal, 1000-Leviathan+Decal
Protoss:10-Probe, 25-Scout, 50-Urun, 100-Nyon, 250-Executor, 500- +Decal, 750- +Decal, 1000- +Decal
Terran:10-SCV, 25-Firebat, 50-Vulture, 100-Hellion, 250-Medic, 500-Spartan Company+Decal (lol browder), 750-Wraith+Decal, 1000-Diamondback+Decal
Random:10-Overlord, 25-Hydra Marine, 50-Zer'Atai Dark Templar, 100-Goliath (lol browder), 250-Lenassa Dark Templar, 500-Mira Han+Decal, 750-Archon+Decal, 1000-Hybrid Reaver+Decal
Unlock all of the above for 'Predator'.
As far as the sort of vague wording on some of these, let me explain a bit:
'Melee Game' means any game type. Vs computers, with allies, League match, anything.
'Allied'/'Friendly', this always implies more than 1 human player in the game (I think you may still be able to do it in a co-op vs AI game. Correct me if I'm wrong).
'League' means a ladder game, doesn't matter how many players (unless it says specifically 1v1, 2v2, etc). Even though FFA is unranked, it is counted as a league game.
So one way to complete a bunch of these is to remove a friend from your friend list and join an FFA at the same time. Kill the 2 poor helpless noobs and then complete as many as you can with your races.
'Unit' can also mean building, anything that can give a +1 kill score on a unit usually counts.
'HQ' or Headquarters, is shorthand general term referring to Command Center, Hatchery, Nexus.
For most of the achievements to be completed, they are required to be finished completely in a single game. (but not all achievements in the same game, although it is fastest to try and do all the terran achievements you can in a game for example).
Also, pay close attention to the wording. Some achievements need to be a single specific unit, some just need a type of unit.
PS- I am fully aware that all this will be reverted once the beta ends, but there is a saying that goes something like; "It's not the goal that matters, but the journey itself".
And besides, this guide won't end once the game comes out (although I might need to make some changes to it).