well if gaijin bothered to model L15A5 as it should be then we wouldnt have this issue.
Mk5 could get that and the LRF and be a great tank.
Yup bug reports got accepted the other month there!!! :D
The l15A3 APDS is actually one of the few fantastic APDS in the game due to its weight and so on, it does a lot of damage, usually one taps most things In my experience with it.