Weapons scenario - Guardian

Map: Guardian
Location: gravity hammer spawn point. Facing sniper spawn point.
Scenario:
1 enemy with a shotgun and SMG at the sniper spawn point.
1 enemy dropping down from the entrance to the portal room behind you carrying an assault rifle
1 enemy sniping near the oversheild spawn point. Secondary of assault rifle.

Weapon choices:
Assault rifle; Battle riffle; 2 sticks
Battle rifle; SMG; 2 frags
Dualweild plasma rifles; assault rifle; 1 frag; bubble shield
Gravity hammer; assault rifle

Which weapons do you choose and how do you eliminate all 3 enemies without dieing?

br, smg, 2 frags

hide behind the grav ham spawn...chuck the granaes at the sniper, br him down...then 4 shot the AR dude

br down the OS by jumping and firing (thanks to bumper jumper )

remember, the sniper is on the level above you... you can gernade him from there. try again

oh..hm...crouch to assinate them all! They can't see you on radar!