I feel dirty when using the self-repair ability on the T-70.
if it -has- to have one (and I mean HAS to), then it shouldn't be able to repair engine damage, turret damage or any other critical hits. It's just too good to be so durable.
It did not do specifically "engine damage" repair before. What happened was that panzerfaust did 80 damage and the repair did 80 health. Now after the patch the panzerfaust does 100 damage but the repair stayed the same so it became pretty useless against the kind of damage it was most used for: Repairing panzerfaust damage.