Talk:Survival/@comment-24167140-20131114054710

I have found Cambria on Earth to be my favorite mission for farming T2/T3 keys. There's often a spot that yields good frame XP (even solo) when camped, so it's an easy way to get keys and level frames or weapons at the same time. If you can't find a team that knows how to maximize XP on Kappa, I think this spot gives it a run for its money. And as always, you can stay past 15 minutes to get an ammo mutation mod or two. 25k+ frame XP is achievable solo in 15 minutes if you can find the spot, and I've seen 70k+ XP for 25-35 minute solo sessions.

Bring whatever frame you need to level, and something comfortable to use at long distances, like a Vectis, with Shred installed. Preferrably, bring something ammo efficient. A Torid would probably work well here, too. The mobs need to die quick, so unranked/unmodded weapons are a no-no.

Look for the area where there's cargo being moved on a rail (pic 1). Camp at the end of the walkway that runs parallel to that rail (pic 2), and mow down the seemingly endless stream of foolish Grineer that runs toward you from the opposite end. Occasionally you should run up the walkway then back to pick up the oxygen and ammo clogging the walkway. It's cheesy, I know, but it's actually pretty satisfying! Oxygen usually isn't an issue, either. Note: The pics were taken during different sessions, so please excuse that. P.S. Grineer Rollers don't spawn here!