What is the best way to go through the PVE maps?
Complete all, or nearly all, of a difficult level before moving on. Each difficulty is much harder then the one before, so you might as well pick the easy fruit first. For each difficult level, first complete all the maps once. Since it will be the first time you complete each map, you will get new upgrades each time. It also opens up all your options. Then you start grinding. PVE is all about repeating maps to get upgrades (loot). Whenever you finish a map, you are given a random assortment of upgrades from a possible list for that map. 1-player maps give you 2 upgrades of different colors. 2, 4 and 12 player give 4 upgrades, one of each color. This is important to understand, since, on average, you will get 2 upgrades for 1 and 2 player, 1 upgrade for 4 player, and 1/3 upgrade for 12 player. So obviously, it is a much better deal to clear out the 1 and 2 player maps first, then the 4 player. I tend to avoid the 12-player maps until I am done with the others. The more players a map ha
