How do people run Insanity 3?

Game Discussion
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1

I always go to the Insanity 3 zone (alone cus nobody else comes), and i always get killed basically instantly, and never get anything because there are 9 atlanteans on 1 island, and all of them are level 300+

2

Invisibility. Lots of it

3

thank you, alot

4

Hit-and-run tactics with blast/shot