Go to the endzone challenge in the battledome when you are Crusader or above. I HIGHLY reccomend that you have at least 2 experiance mods on your alpha mod for the following weapons:
Arbiter/Silencer
Harbringer/R.Y.N.O 4
Magma Cannon/Vulcan Cannon
Quasar Turret Launcher
Duel Raptors/Dual Vipers
The Sniper Rifle (forgot its name)
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Now go fight in ENDZONE and you'll get money and exp like crazy.If your weapons are v80-v99, you should get at LEAST 2 nanotech levels. For the lower nanotech levels, its 5-6 i think.
Good luck