Sure. I'll do it. So long as its well organized and people have defined roles. I.e. people know how to straddle portals to make sure spinners can never get boxed in away from being hit. people are assigned to protect knight. people know not to open gates. people know not to waste their time attacking guys behind gates since they don't do any harm. etc...
Losing has nothing to do with the level of players. It's all based upon the tactics. I've been playing 78 all day today, and I've lost like 3 games so far. Any world shouldn't be limited by level of players, but willingless and ability to work in a team.