The idea is simple:"which is the first upgrade i have to do?"
I have made an analysis using this calculator. I have tried the marauder versus the most common units on SC2 for every race. To make the post clear i have used only upgrade on marauder (i have never used upgrade on other units!) and 0/0 means no upgrade,1/0 means weapon upgrade,0/1 means armor upgrade.
General Conclusions: Only in few situations we get an advantage with weapon upgrade(and in all the case is a real little advantage). It seems always more clever to make first the Armor upgrade.
Vs Protoss
+ Show Spoiler +
vs zealot
conclusion:vs a zealot army it seems more convenient the armor upgrade. If you choose weapon upgrade you will need 2 less attack for kill an opponent zealot, while if you choose armor upgrade you will need 2 more shoot for die . So you can take more hits by wrong micro without loosing your marauders.
+ Show Spoiler +
0/0 upgrade
DPS: 8.405 *
Time to kill: 19.21 seconds *
Attacks to kill: 17 attacks
Time to death: 8.1 seconds *
Attacks to death: 9 attacks
Kill rate: one Marauder will kill 0 Zealot(s) without dying (0 health left) **
1/0 upgrade
DPS: 9.29 *
Time to kill: 16.95 seconds *
Attacks to kill: 15 attacks
Time to death: 8.1 seconds *
Attacks to death: 9 attacks
Kill rate: one Marauder will kill 0 Zealot(s) without dying (0 health left) **
0/1
DPS: 8.405 *
Time to kill: 19.21 seconds *
Attacks to kill: 17 attacks
Time to death: 9.9 seconds *
Attacks to death: 11 attacks
Kill rate: one Marauder will kill 0 Zealot(s) without dying (0 health left) **
vs sentry
conclusion armor upgrade will kill a sentry leaving more life to marauder
+ Show Spoiler +
0/0
DPS: 8.405 *
Time to kill: 10.17 seconds *
Attacks to kill: 9 attacks
Time to death: 13.5 seconds *
Attacks to death: 18 attacks
Kill rate: one Marauder will kill 1 Sentry(s) without dying (34 health left) **
1/0
DPS: 9.29 *
Time to kill: 9.04 seconds *
Attacks to kill: 8 attacks
Time to death: 13.5 seconds *
Attacks to death: 18 attacks
Kill rate: one Marauder will kill 1 Sentry(s) without dying (41 health left) **
0/1
DPS: 8.405 *
Time to kill: 10.17 seconds *
Attacks to kill: 9 attacks
Time to death: 15.75 seconds *
Attacks to death: 21 attacks
Kill rate: one Marauder will kill 1 Sentry(s) without dying (47 health left) **
vs stalker
conclusion: marauder benefits more from a weapon upgrade (they will survive with 3 more hp)
+ Show Spoiler +
0/0
DPS: 17.255 *
Time to kill: 10.17 seconds *
Attacks to kill: 9 attacks
Time to death: 10.8 seconds *
Attacks to death: 10 attacks
Kill rate: one Marauder will kill 1 Stalker(s) without dying (8 health left) **
1/0
DPS: 18.14 *
Time to kill: 9.04 seconds *
Attacks to kill: 8 attacks
Time to death: 10.8 seconds *
Attacks to death: 10 attacks
Kill rate: one Marauder will kill 1 Stalker(s) without dying (21 health left) **
0/1
DPS: 17.255 *
Time to kill: 10.17 seconds *
Attacks to kill: 9 attacks
Time to death: 11.88 seconds *
Attacks to death: 11 attacks
Kill rate: one Marauder will kill 1 Stalker(s) without dying (17 health left) **
vs Immortal
conclusions:first upgrade seems giving no real benefit to marauders. The most advantage is given by weapon upgrade but the advantage is very little
+ Show Spoiler +
0/0
DPS: 44.95 *
Time to kill: 3.27 seconds *
Attacks to kill: 3 attacks
Time to death: 23.73 seconds *
Attacks to death: 21 attacks
Kill rate: one Immortal will kill 4 Marauder(s) without dying (10 health left) **
1/0
DPS: 44.95 *
Time to kill: 3.27 seconds *
Attacks to kill: 3 attacks
Time to death: 22.6 seconds *
Attacks to death: 20 attacks
Kill rate: one Immortal will kill 3 Marauder(s) without dying (160 health left) **
0/1
DPS: 44.04 *
Time to kill: 3.27 seconds *
Attacks to kill: 3 attacks
Time to death: 23.73 seconds *
Attacks to death: 21 attacks
Kill rate: one Immortal will kill 4 Marauder(s) without dying (10 health left) **
vs Terran
+ Show Spoiler +
vs marine
conclusions:marauders seem to take advantage only from armor upgrade
+ Show Spoiler +
0/0
DPS: 8.85 *
Time to kill: 5.65 seconds *
Attacks to kill: 5 attacks
Time to death: 16.25 seconds *
Attacks to death: 25 attacks
Kill rate: one Marauder will kill 2 Marine(s) without dying (5 health left) **
1/0
DPS: 9.73 *
Time to kill: 5.65 seconds *
Attacks to kill: 5 attacks
Time to death: 16.25 seconds *
Attacks to death: 25 attacks
Kill rate: one Marauder will kill 2 Marine(s) without dying (5 health left) **
0/1
DPS: 8.85 *
Time to kill: 5.65 seconds *
Attacks to kill: 5 attacks
Time to death: 20.8 seconds *
Attacks to death: 32 attacks
Kill rate: one Marauder will kill 2 Marine(s) without dying (29 health left) **
vs marauder
conclusions:no matter what, marauder will die
+ Show Spoiler +
0/0
DPS: 16.81 *
Time to kill: 7.91 seconds *
Attacks to kill: 7 attacks
Time to death: 7.91 seconds *
Attacks to death: 7 attacks
Kill rate: one Marauder will kill 0 Marauder(s) without dying (0 health left) **
1/0
DPS: 17.7 *
Time to kill: 7.91 seconds *
Attacks to kill: 7 attacks
Time to death: 7.91 seconds *
Attacks to death: 7 attacks
Kill rate: one Marauder will kill 0 Marauder(s) without dying (0 health left) **
0/1
DPS: 16.81 *
Time to kill: 7.91 seconds *
Attacks to kill: 7 attacks
Time to death: 7.91 seconds *
Attacks to death: 7 attacks
Kill rate: one Marauder will kill 0 Marauder(s) without dying (0 health left) **
vs hellion
conclusions: armor upgrade gives more hp at end of combat
+ Show Spoiler +
0/0
DPS: 8.85 *
Time to kill: 10.17 seconds *
Attacks to kill: 9 attacks
Time to death: 33.84 seconds *
Attacks to death: 18 attacks
Kill rate: one Marauder will kill 2 Hellion(s) without dying (20 health left) **
1/0
DPS: 9.73 *
Time to kill: 10.17 seconds *
Attacks to kill: 9 attacks
Time to death: 33.84 seconds *
Attacks to death: 18 attacks
Kill rate: one Marauder will kill 2 Hellion(s) without dying (20 health left) **
0/1
DPS: 8.85 *
Time to kill: 10.17 seconds *
Attacks to kill: 9 attacks
Time to death: 39.48 seconds *
Attacks to death: 21 attacks
Kill rate: one Marauder will kill 2 Hellion(s) without dying (35 health left) **
vs Zerg
+ Show Spoiler +
vs zergling
conclusions:With all upgrade you will kill two zerglings but with armor upgrade you will have more hp at the end of the battle
+ Show Spoiler +
0/0
DPS: 8.85 *
Time to kill: 4.52 seconds *
Attacks to kill: 4 attacks
Time to death: 16.96 seconds *
Attacks to death: 32 attacks
Kill rate: one Marauder will kill 2 Zergling(s) without dying (29 health left) **
1/0
DPS: 9.73 *
Time to kill: 4.52 seconds *
Attacks to kill: 4 attacks
Time to death: 16.96 seconds *
Attacks to death: 32 attacks
Kill rate: one Marauder will kill 2 Zergling(s) without dying (29 health left) **
0/1
DPS: 8.85 *
Time to kill: 4.52 seconds *
Attacks to kill: 4 attacks
Time to death: 22.26 seconds *
Attacks to death: 42 attacks
Kill rate: one Marauder will kill 2 Zergling(s) without dying (53 health left) **
vs roach
conclusions:Also in this case the armor upgrade gives you the best!
+ Show Spoiler +
0/0
DPS: 15.93 *
Time to kill: 10.17 seconds *
Attacks to kill: 9 attacks
Time to death: 13.5 seconds *
Attacks to death: 9 attacks
Kill rate: one Marauder will kill 1 Roach(s) without dying (35 health left) **
1/0
DPS: 16.81 *
Time to kill: 9.04 seconds *
Attacks to kill: 8 attacks
Time to death: 13.5 seconds *
Attacks to death: 9 attacks
Kill rate: one Marauder will kill 1 Roach(s) without dying (35 health left) **
0/1
DPS: 15.93 *
Time to kill: 10.17 seconds *
Attacks to kill: 9 attacks
Time to death: 13.5 seconds *
Attacks to death: 9 attacks
Kill rate: one Marauder will kill 1 Roach(s) without dying (41 health left) **
vs hydralisks
conclusions:You can't kill an hydra with your marauder but you can make her suffering with a Armor upgrade!
+ Show Spoiler +
0/0
DPS: 17.74 *
Time to kill: 7.44 seconds *
Attacks to kill: 12 attacks
Time to death: 10.17 seconds *
Attacks to death: 9 attacks
Kill rate: one Hydralisk will kill 1 Marauder(s) without dying (30 health left) **
1/0
DPS: 17.74 *
Time to kill: 7.44 seconds *
Attacks to kill: 12 attacks
Time to death: 10.17 seconds *
Attacks to death: 9 attacks
Kill rate: one Hydralisk will kill 1 Marauder(s) without dying (24 health left) **
0/1
DPS: 16.13 *
Time to kill: 8.06 seconds *
Attacks to kill: 13 attacks
Time to death: 10.17 seconds *
Attacks to death: 9 attacks
Kill rate: one Hydralisk will kill 1 Marauder(s) without dying (20 health left) **