3 kills: Longsword recon ship (spartan)
3 kills: Banshe recon (elite)
5 kills: pelican artillery strike (spartan)
5 kills: Anti-infantry cannon barrage (elite)
7 kills: marine squad led my seargent johnson ( spartan armour)
7 kills: grunt squad led by the arbiter (elite armour)
25 kills: Covenant assault carrier: 100 grunts, 50 elites, 50 brutes, 25 drones, 5 jackal snipers, 2 hunters (elite armour)
25 kills: Human frigate: 20 spartans, 200 marines including johnson and miranda keyes. 10 odsts, marine sniper suad of 5 led by master cheif. (spartan armour)
Please post comments below or any other ideas u people have!
[Edited on 11.13.2009 9:42 AM PST]