Well, I started dodging like crazy while encountering enemy with LG. VERY rapid strafe movements, left - right, short distances, like just steps, not even running. No jumping during that.
Seeing guy who takes you maybe 30-40hp with 150 cells of LG and typing "lol" on chat when he's run out of ammo - priceless.
Thanks guys - a little effort, some practice, turning tactic into habit - and I die by LG only if I do stupid things or only if encounter pr0s.