Modern Warfare 2 kit recommendation

I asked you guys before about this and you gave me wonderful advice. So I’m asking for more.

I wake up in the morning and sip coffee while dropping fools on MW2. It’s a daily routine that makes the rest of the day go better. I tried all the recommendations that I got but I found the first of jacobsta811’s the most useful. I’m wondering if anyone here can improve on that.

I used to stick to Headquarters Pro but have found myself branching out with the General Stimulus level. I love speedy close quarters machine gun combat and have found that to be not only the most successful but the most useful. I am not the type that plays with a clan nor will I change classes based on different levels. I want something that will work scrambling in buildings because I find myself doing that all the time. Whether or not it’s wise. Every game I end up with more deaths than kills but an in the mid to high range of stats for taking control points. I’m willing to learn anything, can you improve on this:

UMP45 - holographic site (my biggest beef is the bullet tracers give me away but I drop one or two before that happens)
SPAS-12 - Grip (great weapon but not often used)
Claymore (semtax would be more useful but I find myself alone at the control points often and like the feeling of having my ass covered.)
Flash Grenade X 2 (I end up blinding myself more often than enemies or get shot throwing them)
Marathon Pro (absolute necessity for me)
Lightweight Pro
Steady Aim Pro
Final Stand

My only often used variation on this is one with a secondary rocket launcher when the need arises. I’m level 65 or so.

I like using marathon and cold blooded together…third perk doesn’t really matter too much…