The Eva is slower and i was disappointed the first times I picked it since it was an auto but you are much better just shooting it as single action. 
I had many of those stressful fights that happen after you just landed and all you could find was a Mozambique. It doesn't have much ammo but it dishes out quickly. 
I am starting to grow fonder of the Eva and have discarded the p220 completely. Now that's a useless weapon that leads me to losing fights. Sure it's easy to place shots with it but at the same time it does 11 damage on the chest of a well equipped legend. 
The Mozambique as the P220, is a lower tier weapon that you use until you get a better weapon of the same type.