Qu33n you should try replacing the foregrip on the imr with the parabolic mic. I don't usually find foregrips on burst weapons to help too much unless it kicks alot in long distance fights for you.
I've recently switched form the kf5 to the asm1 as well and its been alright... I also use the imr and a mors class.. I'm not sure what perks I have on my mors class, I'll post when I check it out..
As for my streaks I use pretty much the same setup for streaks on all my classes: UAV with support/threat detection/assist points, care package with reroll/support/trap, and i recently started using a third if i have the room which is a vulcan with extra burst...
I always run hardline and blast suppressor as my 3rd perks, uav jammer or whatever its called as my perk 1, and i never use 2nd perks in this game... so I guess I don't really have much different perks for the mors class then....