Ansible2

Were you the only player on the server when you logged off?

Fixed in #642

This refactor and testing has revealed that the group limit can be hit quite easily and likely has been during play when users have caused a number of AI groups...

Tests - [x] vehicle waves work - [x] defector vehicle waves work - [x] suicide wave works - [x] civilian wave works - [x] drone wave works - [x] FIX:...

Happens with both paratrooper helis and support helicopters

Possible cause is [this line](https://github.com/Ansible2/Arma-3-Survival/blob/4e7357a5133c00630f8f155f8255e27fa8c1353d/Functions/Supports/fn_passiveHelicopterGunner.sqf#L55) `vehicle` is a keyword; should change it.

Added in #642