No, pretty sure that what you mean is the typical gangbang that happened in MM, happens in other mods and happens in Native.
5 guys? No problem, time to get into batman mode! Just hold down block, and they couldnt kill you for quite a while. A couple of spam here and there, and you are golden.
I dont know how numbers is not teamplay. You know, I always thought teamplay is when a number of people on the same team get together to rape a lone guy because he was too h4x00r for his teammates.