the cvar is r_wolffog 1 (default, with fog) but some ETPro servers, changed it in the settings so it looks like ur 1st or 2nd picture dunno if u can set it to 1 then. The others are: r_nv_fogdist_mode: "GL_EYE_RADIAL_NV" and r_ext_NV_fog_dist "0" but dont ask me what they do