Yes I would suggest trying to get the next 2 guns after it too they are better.
FAMAS
Yes it is, very accurate
I don't know 2 be exact :) But it is a good gun :)
no
Well if you are a sniper about 30 but if you run and gun its about 50 to 7
Their all good for their own special skills. But the UMP is just a beast.
yes.
sub-machine gun
There is no such think as modded gun but there is a modded controller.
I don't know about level but you basically just described the ACR. I would recommend the Red Dot sight, that is better than holo for ACR. If you don't like the ACR I would say TAR21 Silenced is nice.
WORST GUN IN MW2 OUT OF ALL IS THE F200 LOOKS UGLY AND DOES NOTHIN!(only writing in caps coz i hate it lol)
Light Machine Gun = LMG