Bonuses:
Walker v. Heavy: Walker ignores all the Heavy's armor and does double damage.
Heavy v. Transformer: Heavy does double damage if the weapon hits.
Transformer v. Medium: Medium weapons only do half damage to the Transformer.
Medium v. Walker: Pilot skill is reduced by 1/2.
Walker bonus: +3 to Pilot skill.
Transformer bonus: Get's a special 'flare roll' if the roll is greater than 4, All missile weapons are zeros in the Attack formula.
Medium bonus: Takes no damage from melee weapons
Heavy bonus: Can activate shielding once per match, becoming immune to the next 4 attacks.