I was looking through my skin collection and noticed I have a lot of different skins for the the Vandal and Phantom. Is there a way to equip skins defense and offense? Or is it just the same skin all game?

So i've been playing on and off for a year now. I only get to play 4 or 5 matches per week so i haven't been able to improve too much. Nor did i have time to work on my aim. I just played omen and tried to outplay the enemy. Finally reachi...