snip
I précised by saying STATS at gun that is a fact
the sniper stun the brumbar as it's an assault gun , which is very powerful (was removed in all unit even the pak 40 has a nerfed version of the stun)
piat RE squad are a 5 men 2 piat with snare engineer squad, so on that part we are clear
yes brummabr does not counter tanks but late game u move with ur tanks as they dictate the game late, in late game they are as much mobile as osther , cc at squad (piat re, pgreen) and a moving lmg inf (IS, green), a very mobile tank (blitz p4 , Cromwell) and a mobile main battle tank (panther , comet)