You press num pad 1 before you join any games.
Cold seed - seems to work well there, since I seem to be far away from the map and underground, though not as good as before, when it was in the air. In the current one, sometimes people spawn behind you and you can't kill them.
Two Towers - Doesn't work that well, you can kill people fine, but people can see and kill you as well. They just start camping you, though you can get a couple kills during the invulnerable period after spawning. Works great only if you are allied to team Alpha.
Snow Valley - Seems to be the same spot as before, still gets killed easily. I don't think you can kill people in this spot, All I see are people's backpack. (Gun gets blocked by the floor, and knife is out of range)
Pump Jack - Hard to kill people, but still doable. Some people spawn ontop/behind you, making them unkillable. Don't know if you can get killed.
Junk Flea - Very Hard to kill people (bad spawns), and you are easily killed.
Warhead - Same spot as before, Don't know if you can still get shot at. Kills people fine.
Overall - The only spots you aren't be killed is Cold Seed and maybe Warhead/Pump Jack. None of these maps work as good as pre-patch. In all maps, they spawn a lot closer to you, and most people are ontop/behind you, making them unkillable. Two Towers is perfect if you are Team Alpha, though there are some people you can't knife and have to shoot.