And your saying The IS2 is not, It effing fires at 4 man squads dude, by late game most of allied main lines are at minimum 5 man squads. And Allies have higher dps output with their shocks/2x bar rifles/2x bren sections/Rangers/mandos and 2x lmg paras. It's actually axis squad who are low most of the time. Take your allied goggles off. Heavies Fuck everyone regardless of faction.
i had a tiger killing my schocks in 2 shots (1 shot then i retreated got them on the retreat), so does the is2 with grens, the problem is the tiger gets much higher rof with vet making him capable of landing more shots in then the is2, making him overall better then the is2 (against inf).
Sqad size doesnt really matter that much against heavies becouse of sqad bunching etc.
This is not even due to misplay, you sit in green cover bunched , see the heavy retreat close together and get wiped. Thats why the tiger seems oppresive since in can get more shots in then the is2
Edit: If the is2 gets his YOLO armor nerf, so should the tiger be looked at, since its vet doesnt fit in well with the changes + it has lower vet requirements than the is2, for no apparent reason, while having higher damage output