All weapons, units, health, and shields in Arena are equalized. What does that mean? In Arena, your unit (no matter which one) has the same unit power as your opponent’s unit. So, for example, two Shotgunners are equal to two Commandos. Different guns of the same type have the same power as well. That’s why you can be matched with somebody on a higher rank in Arena – the level doesn’t matter, because your powers are identical. Skill and adapting to current arena rules is what makes all the difference.