How to kite spitters/worms Factorio (Read Description)
Hold down (S) and tap up (W)
or
Hold left (A) and tap right (D)
I used full power armor MK2 with two reactors, 4 exosuits, 4 PLD laser defense, and 2 MK2 shields, rest of the slots filled with batteries, solar panels, nightvision, ect.
Have fun melting big pools of those pesky aliens the easy way :)