To be honest (that's my oppinion and I will mention well known issues) the only things that brake current game are:
1) 1AP shots in TB
2) unbalanced economy (too many rare items and useless caps)
3) domination of tanks and turbo plasma over other builds
4) sneak is too powerful
5) implants are too powerful
6) more variety of PvE needed
If these were repaired, more people would play and it would be really best server of FOnline (for me it is anyway, but not many people do PvP at the moment).
As Kilgore knows and (I hope
) works on these issues we're all just waiting for WIPE to come.
So players - be patient and devs - works faster damn it!