Yee stug should be up to 100 fuel as it stands. Su76 should be 85 imo
Also if it were up to me:
Increase cost to 115 fuel
Increase frontal armor to 160-180
Remove TWP
Add in ability to switch to HE shells
Vet 1: recon mode? I don't know
Panzer4: increase pen to 120-130.
Why remove TWP? OP? UP?
I think its fine. This Stug is AT vehicle, so TWP is more reasonable. If u want to put HE into some OStheer vehicle it should be pz4...
Cost increase? 100 should be OK, but to leave it as is...