[quote=@Apollosarcher]
[@PrinceAlexus] That is the plan, however, we need to clear enough heretics to get a bomb or enough explosives for do the job from the Kriegers.
[/quote]

Well a heavy stubbed might be marine scale fire arm if ammo runs low. 
It's basically a heavy machine gun. 

Yes. We need to make a breach but clear the upper bastians. 

So.... Do we have any artillery support. Maybe some wired together frag Grenade bundles or crates of em tossed on to clear ernough wall to scale?

We marines. We can find Explosives somewhere or Jerry rig somthing like a laser cannon power pack..