bind mwheelup +jump
bind mwheeldown +jump

Crosshair:

cl_crosshair_drawoutline "1"
cl_crosshair_dynamic_maxdist_splitratio "0.35"
cl_crosshair_dynamic_splitalpha_innermod "1"
cl_crosshair_dynamic_splitalpha_outermod "0.5"
cl_crosshair_dynamic_splitdist "7"
cl_crosshair_outlinethickness "0.1"
cl_crosshairalpha "1000"
cl_crosshaircolor "1"
cl_crosshaircolor_b "255"
cl_crosshaircolor_g "255"
cl_crosshaircolor_r "255"
cl_crosshairdot "0"
cl_crosshairgap "0"
cl_crosshairgap_useweaponvalue "0"
cl_crosshairscale "1"
cl_crosshairsize "3"
cl_crosshairstyle "6"
cl_crosshairthickness "1"
cl_crosshairusealpha "1"