Boosters, it's hard to play good in those games that has boosters in them, and only thing that is left to do is kill those guys who does it. But that doesn't help much, they usually end up getting more than 10k point from that game.
What I thought is that if you pick Relay from Relay post (or whatever is that it's called) you can't pick up it from there for 10-15 seconds if you drop it, or don't get points if you drop it and pick it up from Relay post (I vote on "you don't get points" option on this because sometimes these thing happens rarely). Thought I don't have solution to those who return it and get points by that. I base the pick thing on that if you pick it up and people play how they should play this game mode, you are usually dead by then, not dropping the thing. And even if you drop Relay and other player picks it up and returns it and you somehow manage to get it again in those 10-15 seconds you don't get points from it.
Second is that I would like Solo mode on this game mode also because I usually play alone and get into random group. If there is even few guys on other team that is friends or in same group they usually win.