EDIT: i didnt post a video, just saying it looks nice but if you insist.
So far I see an m4 type assault rifle
the Armsel Striker
an M249 SAW
Remington 870 type shotgun,
TDI Vector (0:35),
an M14/M21 class sniper system (0:43)
a heavily modded AK type unknown (0:53)
Steyr AUG (guy being thrown 0:59)
UMP (background 0:59 and 1:25)
FN FAL (1:08)
that guy is screwed in 1:10
a Skorpion im not too sure(1:26)
some anti-aircraft missile being fired (1:26)
and the great Skyhook extraction system at the end.