Bugfixes and optimizations

v2.1.18

Increase random strafing chance - NPCs should move around more in battle.

v2.1.17

Remove returning a value from friendly fire hook.

v2.1.16

Forcing player factions changes factions immediately, instead of on respawn.

Changing faction convars reports faction changes to players.

v2.1.15

NPCs reload when they are idle/patrolling, if they need to.

v2.1.14

Update frenzy logic - instead of resetting to 0 after enemy gets far away, use new mechanics:
Build frenzy when attacking
Quickly lose frenzy when not attacking

v2.1.13

Remove extra buffer distance from enemy before frenzy speed bonus resets.

v2.1.12

Limit frenzy speeds to reasonable values so that NPCs don't start attacking unrealistically fast.

Update Fast Zombie AI so that they are less glitchy.

v2.1.11

Update Combine soldier scripts.

v2.1.10

Fix Combine Soldiers getting stuck switching between schedules.