I think you mean DC? DC is 'Defense Computer', DCC is 'direct client connect' on IRC networks.
About a week ago,
Kharnov and I set up a DC only base on US1- in the red room on Arachnid, which consisted of an RC in the back corner/ledge, 2 nodes on the ledge up high, an arm and medi on the ground near the RC, and DCs blocking the 3 main entrances.
A repeater was built in the hall heading towards alien base, and 2 DC were placed there.
Another rep and 2 DCs were built blocking the entrance to the alien base (underneath the pipes).
2 Reps and 4 DCs were built just to block the hall back to default H base, and 2 more blocking the main entrance into that room.
Once those were up, I ran upstairs from the H default base, built a rep and 2 more DCs to block the entrance to the long hallway above H default from crate room, and then also built 2 more to block the ledge leading down from the crate room.
Finally I blocked the ramp in alien base with 2 more DCs.
All in all, I think we had 5 DCs in the main base, and about 14 DCs on reps.
Both teams were S3, but the presence of so many DCs makes it hard for aliens to run away.
TL;DR: Humans won by computing our defenses, and we didn't need a single turret or tesla.
