1) Assist +1 to Hit (core p122)
Assist and Interference When making close combat attacks, a fighter can claim "assists" from friendly fighters who are also engaged with the target of the attack (who are not engaged with any other fighters from the same gang as the target of the attack). e.g. Two on one. Each assist claimed adds +1 modifier to the Hit roll.
2) Interference -1 to Hit (core p122)
When a fighter makes a close combat attack they may suffer interference from each other enemy fighter that is A) Engaged with the attacker, and B) Not engaged with any other fighters from the same gang as the attacker. Each Interference causes a -1 modifier to apply to the Hit roll.
3) Nerve Tests (core p128)
+1 to the Cool check for each friendly fighter within 3" of them that is not Broken or Prone and Seriously Injured.
4) (not) Fleeing the Battlefield
Fighters can auto-pass their Cool check (after the gang has bottled out) from being close to a Leader or Champion.
5) Recovery Test Assistance (core p141)
When making a Recovery test for a Prone and Seriously Injured fighter, one Standing and Active friendly fighter that is within 1" can offer assistance.. If they do so, roll one extra Injury dice then pick one of the Injury dice to resolve and discard the other. In addition, a fighter that is being assisted does not suffer a Flesh Wound regardless of the result of the injury dice. A fighter may only assist one Recovery test per End phase.
6) Rally Assistance (core p141)
A Broken model applies a +1 modifier to their Cool test for each friendly model within 3" that is not Broken or Prone and Seriously Injured.
7) Group Activations
