Remove Turn-Based Combat
(TBC / CBT)
It's slow style of combat cripples rebels capacity for guerilla warfare via hit-and-run tactics, as the other side (Civil Protection) can withhold from an S2K vote while help arrives.
Typically, this would be succeeded by modifying the good quality skills system to effect S2K combat. Recoil, draw/ADS speed (gun skill), movement speed (Speed, duh) and Melee damage/swing speed (Guess.) are all possibilities.