There is a juicy deposit near in the west, but it is protected by a small alien base. I'd need to clear them up asap, before running out of iron.

(sorry it was a night shot)
What should I bring? Which research is the most effective?
Currently I get near and the worms one shot me.
I am making steel to craft the second level armor, will that be enough with an assault rifle and piercing ammo? the fast enemy respawn will kill me if I survive the bloody worms.