Ambitious: Will generally (based on a percentage chance) attempt to fight the strongest enemy unit in the brawl.
Slippery: Will attempt to disengage from brawls when the odds are not in this rats favour. However can be brought back into the brawl if facing a different/weaker foe.
Annoying: Will attract the attention of enemies in the brawl, causing them to focus their attention on this rat.
Back to the wall: Gets a performance boost when outnumbered.
Pack Mentality: Gets a performance boost when the enemy is outnumbered.
Coward: Will occasionally flee when injured.
Stoic: Won't disengage from brawl unless commanded to.
Vile: Has a lower chance of being aggro'd/focused.
Enum for Rats to have different personality types. Each should be significant enough to influence player decisions.