Best Ultimate Perks to use
The last set of Perks you can equip late in the game are your Ultimate Perks. You may not have these Perks for an over extended amount of time each match but having them can only help you rather than hurt you.
Browsing through your six options for an Ultimate Perk, there is one that stands out way above the rest. That Ultimate Perk would be Ghost. Ghost makes you undetectable from UAVs, Portable Radars, and Heartbeat Sensors. When you get 8 minutes deep into a match, there are most likely going to be a lot of UAVs flying around. Not only that, but you also become hidden from Portable Radars and Heartbeat Sensors. Two additional things that can really mess up your gameplay if the enemies are using them to find you. The more hidden from enemies you can be, the better. Ghost is definitely one of the best Perks you can have in Call of Duty: Modern Warfare 2.
If you are looking for another Ultimate Perk to use. You can also go with Bird’s Eye. Bird’s Eye zooms the mini-map out and reveals the enemy location with UAVs and Radar Pings. This is nice to have if you are calling in UAVs on the regular or have teammates using UAVs a lot, but I still would much rather use Ghost over any other Ultimate Perk.
Now since this is just the Call of Duty: Modern Warfare 2 Beta and not the full game, there is still a lot that can be changed. Some Perks can be nerfed, and some may even be buffed. We will have to see which route ends up being taken as the game becomes fully released.