i would like to point out what many players like about the other server, i hope you take it positively -
1. No rules like high roof glitch and red zone camping. Many players like to do this, and if they are doing, a good sniper can easily snipe them. I know it is annoying to get killed from a sniper from red zone, but still he can be also killed.
2. One hit kill for sniper - Since there is a damage multiplier , sniper guns with magnum ammo is one hit kill even on the leg, this is like any sniper's dream.
one rule i like to see is limiting the usage of heli when the number of players are less, lets say less than 20.