This has probably been discussed but what is everyone's weapon and perks of choice?

Just have Cold Blood on at all times when you get it at level 25, everything else isn't really a game changer.

I usually go with

Bling
Cold Blood
Sit Rep

But I play Hardcore 95% of the time.

As for guns, I go with SCAR-H in regular and ACR in hardcore. EBR is my sniper rifle of choice.

In non Hardcore, this setup is money...

SCAR-H w/ FMJ (no Red dot needed, Iron Sights are great)
Marathon Pro
Stopping Power Pro
Ninja Pro

Sometimes I switch out Marathon w/ Scavenger because the SCAR doesn't have a lot of ammo.

But this setup is great because Stopping Power on top of the SCAR's power it already has turns everything into a one or two shot kill.

Marathon is good because not being able to run sucks, and Ninja is good so nobody can find you with a Heartbeat Sensor and your Footsteps are silent.

For Hardcore,

SCAR-H or ACR (noob tube on SCAR, Red Dot Sight on ACR)
Slight of Hand (faster reloads)
Cold Blooded (UAV and other aircraft cant see you)
Ninja (no heartbeat, no footstep noise)

I'm currently using the SCAR-H silenced. I'm using sleight of hand, stopping power and steady aim right now. I can't wait to get cold blooded. Is ninja worth it?

I've only been playing Mercenary Team Deathmatch. I'm not ready for hardcore obviously.

I tried playing without Cold Blood in regular, I have no idea how you do it. I like not having to worry about Air Support/Sentry Guns/UAVs. Getting ripped apart by air is probably the worst, though.

ACR w/Bling
Silencer, Heartbeat Sensor

Stopping Power Pro
Ninja Pro

Automatic Shotgun w/Bling
Silencer, Grip

Care Package (4) + Predator Strike (5) + Attack Helicopter (7)

I do not camp, and I usually know where everyone is at... so I'm very offensive. I usually average about 4-6 deaths, 17-25 kills.

The worst issue with this setup is the amount of ammo in the ACR. I run out quick and have to pick up another gun.

Well thats because I be rapin' fools and never have to worry about that shit.

For Killstreaks I go with Care Package (4), Predator Missle (5), and Emergency Airdrop (8). My highest killstreak on 360 is 12, on PS3 its 10. I don't really get high killstreaks so I don't do anything above Emergency Airdrop.

The only reason I like Ninja is for the Pro aspect of it, which makes your footsteps completely silent. I don't worry about dudes using heartbeat sensors too much. I find I die a lot more from claymores than guys with sensors, so I go with Sit Rep, plus it gives me a good idea of where the enemies on the map are.

As far as Slight of Hand goes, just like with Ninja, I only like the Pro aspect of it which makes you aim down your sights (ADS) faster. Bling, on the other hand, will let you silence your gun and have a red dot/holographic to go along with it. Silencing weapons is huge on regular since the radar is always up and you will pop up as a red dot every time you squeeze the trigger.

I've played with the heartbeat sensor before and it distracted me more than anything. I imagine with time it won't be that way.

I don't know man, I feel completely naked without it. The only reason I took it off was to get some of the perk challenges done, I gave up pretty quick on that, the difference in life span is night and day.

Add me to the PS3 list....

jmers592

What about EMP's? Don't they render red dot sights useless when used?

I use the silencer for the very reason you explained. It helped me greatly.

I prefer it because most people feel it's distracting so they don't use it... and in turn don't use ninja.

Once you get it down, you basically have a UAV at your disposal at all times. It's easy to just run around and waste people.

Then again, there are downsides to it... like having to use bling which eats up some good perks.