Hi trooper you need at least 4 players to start a round in c2 and I'll need to see 4 or more regular players post in support of the dlc maps before we consider adding them to the rotation. I'll have a look at the Igntion map pack over the next couple of days; again though I will need to see some support from the players that some custom maps are welcome, but given that it's free possibly easier to implement.
the best option if you guys want the dlc maps on a server is to get on the c2 servers and rally some support and get them players to post here. I'm more than happy to set up a server but I do need to see some demonstrated support for the dlc; atm I see 3.
and trooper I'll have a look at the igntion maps over the weekend.