A great addition, that I think can only apply to Lone Fighters mode, would be a personal statistics menu, showing how many people you killed, how many times you died, (especially) your kill/death ratio and also how many battles you fought, which maps and modes, how many victories, losses etc. Friendly fire can be excluded from statistics. Many other details could be added too, if possible.
It would be a very cool thing, to see how you’re doing in-game, share with others, brag to your friends about your kdr - after all, this is a game 