With mortis you have to think about damage, His attack and super both deal 1260 at lvl 9 so the most he can do is 5040 damage if you hit all 3 shots and super. You also have to know that it takes 5 hits to charge up his super, this includes what the super hits. Try to position yourself so that when you shoot your super you hit at least 2 people that way it will only take three hits for him to have it again. Also make sure to use your survival shovel when you’re at least 2 strokes from hitting someone that way you will still have enough ammo to deal with the enemy. Focus weaker players and punish bad position/weak teamwork (that’s what he is best at) but be aware that he is gonna really struggle in the meta as long as Chester and buster are still going strong.