[quote name='wowimsocute']i actually have that ribbon, but i did get it the way you described. i used the mk11mod? and ran around shooting people, using it like a pistol. i am actually surprised it worked.
the ribbon i need is the surveillance one, and i need the MAV for that. other ribbons i need: nemesis, suppression, mcom defender.
anyone got tips on suppression? i tend to just kill the enemies outright.
for the emplacement ribbon, i did it twice (!) on conquest - caspian border. there is a kornet or something in the corner of D and most people don't look there. if you just stick around there and spot infantry, you can blow them up when they they think noone is watching. (alternatively, i've read that if you lay mines, and are in a kornet when the mines kill someone, it counts as an emplacement kill. so another thing to try there.)[/QUOTE]
Suppression - Use an LMG (also the suppression perk (slot #3) if you have it unlocked) and do it on Grand Bazaar. Shooting from either A or C overlooking B is a great way to get this ribbon. There is a concrete barrier at C right near the road, up some steps, with a direct line of sight at B where you can suppress the heck out of them all day long. Prop the bipod up on that barrier and reload as needed. Remember with the bipod, you will have much better accuracy, so miss them purposely, but shoot close to them. Hopefully some decent teammates will take them out.
Be prepared to have a couple of rounds where you get only 5 or 6 suppress assists, because they'll happen. The ribbon will come eventually. Your SPM will probably hurt during this process too.
Alternatively, Operation Metro is another good map for it. The set up of that map with the hallways, etc makes it great for getting the suppression assists. Make sure you spot when you shoot (and all the time for that matter) so your teammates know where they are as you are trying to suppress.
Nemesis Ribbon - I'd advise getting a tank and doing this on the container yard map (also conquest). It's easy to rack up a lot of kills on that map because the flags are so close together. The tank for the sole purpose that it will keep you alive longer to do more shooting. This one will come with time. I think I may have also gotten this one on Metro first because the same idiot kept rushing B.
MAV - you'll get the surveillance ribbon in no time once it's unlocked. I'd advise flying straight to point B at the beginning of the match on Tehran Highway (conquest) due to the cluster-screw of that flag at the beginning of the match. Tons of enemies and friendlies will be down there to get you the assists.
M-Com Defender - I don't know, I only play conquest.

I would guess it would come in due time if you play enough rush. I also now have to get all the ribbons for the other game modes.