halo ODST is really hard due to the fact you do not have shields ect. rather stamina and health. playing though campaign legendary was a B****. as well as playing heroic firefight through 60 waves of hell for an achievement.
Halo 3 ODST is good but the thing that sucks about it is... it has no Multiplayer .... but on the 2nd disc it does BUT Thats Halo 3 Mythic Not Halo 3 ODST BUT FireFight On Halo 3 ODST Is Pretty Cool Still ... But Endless Waves Of Enemies Can Get Boring
In Halo I like Hiding & Sniping Best Way To Kill... Another Way To kill That I Like Is On Team Slayer Get Ya team into a warthog and run down the enemy! FUN FUN FUN!!!