First of all, I think there is couple things that should be changed in game to improve competive experience.
There is a huge cap between regular ranked players and those who come to try it first time. In my opinion with couple simple changes this could be fixed.
[i]- public servers with friendly fire on
- 5v5 and 6v6 servers
- maybe getting 1.25x credits from these servers, so players would actually play on em (or something like that?)[/i]
This way it would be much easier to players to start playing ranked, because there would be a way practice it in peace.
In Enemy Territory, competitive scene kept game alive for years. It would be shame not to focus on ranked gameplay in Dirty Bomb.
Sorry for my bad english, cheers.