Hey dude, welcome to the forum.
The NGL rules only apply to search and destroy servers. There are plenty of servers that aren't snd and if you really want to play search and destroy, play on the Y!A servers, it is hardcore mode, but there aren't many rules.
The people playing NGL rules servers are in essence playing promod rules. And in promod, there are more guns available, but in black ops, the aug and Famas are completely unbalanced, they have the firing rate of an smg and the range of an assault weapon which makes it a bit unfair...
I do agree that there could be more smg's available such as the uzi or pm63... I'm not quite sure why they weren't included as they aren't overpowered imo...
Bottom line, NGL keeps noobs with rocket launchers and tubes away. Stuns are also not allowed due to the speed they can be thrown as well as how long the effects last... If you want to go to 'war', then I suggest you go play on hardcore servers where one bullet is almost always one kill