Ok we all know that you can only have two grenades when you spawn. I really think that when you kill someone you should be able to pick up their grenades. I personally like grenades because i use them skilfully and i dont spam them. I think this will make the game better.
Maybe like if you could choose between carrying 2 of each type, or 4 of one type, or something like that. Sometimes, You really just need one type of grenade, and it would be really annoying to be able to carry grenades that you can't use, but not more grenades that you need.