I always just patrol one of the houses. I check the window, put claymore down by the stairs, spawnkill people in the backyard, and keep doing it. Dont hang out in the backyards though or you're gonna get constantly killed. Stay in the houses.
nuketown is way to small for demolition or domination, 3 secs after the match begins you'll get killed by a grenade or a tuber (grenade launcher). Not worth playing in none of these game modes since the res-pawn points are total trash. You kill someone the next thing you know someone behind you BANG! submit is way better
Use the crossbow, and when you are attacking, shoot the crossbow at the bomb in the garage through the open delivery truck. Stops alot of people from defusing if you can aim. Then, run up and spray through the closed end of the garage to get the people on the left side trying to defuse. For the other bomb site, good fking luck because that one is a bitch if you dont have good teammates.