Be helpful
I don't get why so many people on here have to be so flat out rude. Every game my team and I played had our extra folks we didn't know As level 30 players who just came in and wouldn't let those of us in the Learning process get kills or whatnot. If you are a level 30 and going to play Bots, please be there to help other people. Don't just kill steal and try to Be the "godly" person of the game. It is supposed to be a team game Not just a one person show.
I sometimes wish there was a setting that allowed you to pick the highest Level player you want to work with. At least if you get people closer to your Level you know they are learning too.