oursalert, all day, level 1 quests.. barely die or whatever. i say 5 mill a day because i have seen shit drop that was worth 2.3 million. granted that won't happen everyday but i've made 2 million in one afternoon just doing the missions and selling everything i pickup.
I quit though.. the story quests fucked up.. i could never talk to the agent they said was near a stargate.. game told me it wasn't an agent. so bleh.