one that realy works for me is the explosive expert and dare devil with quick boom because you can get up to 4 granades with exploseve expert level 3 and when you activate quick boom 4 granades are very usefull
Fleet Foot and Team Safe - For someone who likes to avoid blindfire, like me, and also wants to concentrate on getting into gunfights. Most of the time the tryhards will throw a grenade near you when they see that you're better than them, and Team Safe will let you avoid the grenade and defeat them before they can escape.
Cloaked and Monkey Man - I don't need to explain that, right? :')
Why Monkey Man bro?
It depends on where you're playing, of course, but Monkey Man IS very effective when used with Cloaked because you can climb up in a second to pull someone down and with Cloaked, you don't make any noise. It also helps you when you're climbing up and someone's shooting at you. He asked for suggestions and because I'm using Monkey Man, I gave him this suggestion.