Can you play Modern Warfare 2 with Athlon xp?

What are some of the easiest challenges to get for the bonus XP if you're trying to level quickly in COD Modern Warfare 2 (for the XBox)?

I have perks ranging from roman numeral I to VI but none are listed as simply "DONE". How high up do the perk levels go, and do they offer any benefits (apart from XP reward) at l …

Why are some opponents able to run right through my claymore mines in XBox 360 Modern Warfare 2?

In Modern Warfare 2 (for the XBox 360), if you drop a claymore, does it survive your own death, or does it disappear when you die?

Unlocking weapons is fun and a great way to get extra XP in Call of Duty: Modern Warfare 2, but the one that always takes me FOREVER to unlock is the FMJ challenge, which requires …

When I deploy a Tactical Insertion flare in MW2, how long does it last? It seems like even if nobody destroys it, it only lasts for a minute or two, but I haven't tried to measure …

If for example you have the Perk Lightweight which lets you run faster, through challenges (how far you've run in this case) you can unlock Lightweight Pro. But even at that point …

Can someone post a list of all of the perks, what they do, and what level you need to be to get them?

In Call of Duty: Modern Warfare 2, what kinds of things can you land on to soften fall damage? I've seen good results with car hoods, dumpsters and old mattresses. What else can I …