startling witch

I made some tests, because i lately play in ggm server with grenade launcher.
I burn witch using gascan and grenade louncher without starling witch. Trick is to place gascan on edge of fire ring spread, and lite gascan from distance, to bullet dont hit can direct, but like damage from grenade explosion, and that make gascan not lited by you, and fire kill witch like environment.

I record as video, and 3 steps: indirectly lite witch described above,  burn fire near witch ( to far from witch) then drop can down, and when can roll, he lite itself using fire from 1st burned can, then he lite witch, and she dont chase you. Final is drop can to edge of diameter, lite with normal weapon, and witch is startled, and chase you.

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