With Stalker Pro to Boss it up and Gold it, because I essentially have no life.

I love the hip fire on the pm9 and use it mainly on bootleg and dome

i use it for the likes of dome to rush and spray S/O/H Q/D S/A all i use is exmags and rapid fire hip fire only its a gun not many like because they dont use it right do not ADS just hipfire it its a underated gun that i had lots of fun gettin gold for

Used it a few times to kill noobs and spray campers with it. Kick with ext mags and slap on steady aim pro on and its goes to town! I used this set up; Scavenger - fastest fire rate and will run out of ammo soon enough/SoH if not using Ext mags. Hardline Pro - if using specialist, if not assassin or quickdraw. SA pro.

its one of my fav smgs.. always have steady aim pro on it and I use either range  and extend mags, or attachments, and put extended mags and rapid fire.  i only hipfire with it aiming with this thing is terrible so no need for kick

i tried it out for a a while .. and i just couldnt get into it .. the longer i play the game .. the more i just feel pretty much a gun is a gun the assualt rifles or smgs is they all kill around the same .. it really just is up to you what you want to use ..

Steady Aim + Rapid Fire + Range = fully automatic SMG shotgun.

it sucks.  i got 2500 with it and retired it for good.  there is no redeeming quality to this gun.  it loses to every other smg if you are more than 50 feet away, except in hardcore.  i never got north of 35 kills in a mtach with it and only won a handful of free for alls with it.  the pp90 is better at everything because you can aim it, p90 is an lmg you can sprint with, the ump has the best range and power, and the mp5 is more versatile.  it was a good challenge, but it is not great.  i'm into the assault rifles now.  i've knocked out the type95 and scar.  i have 2000 with the m4 and acr, so i'm thinking m14 or m16 next

Pretty much use it when Im so tired of all the other guns.