Enter the following code into the init.sqs and modify the names of the markers to suit
;;;;;;;;;; ______ Setup Markers ______ ;;;;;;;;;;
?side player==west:goto "WEST"
?side player==east:goto "EAST"
#EAST
;;Hide West markers from East players
"Respawn_West" setmarkersize[0,0]
"ESafezoneMarker" setmarkersize[0,0]
"WStart" setmarkertype "empty"
"WestNogo" setmarkertype "empty"
goto "NEXT"
#WEST
;;Hide East markers from West players
"Respawn_East" setmarkersize[0,0]
"WSafezoneMarker" setmarkersize[0,0]
"EStart" setmarkertype "empty"
"EastNogo" setmarkertype "empty"
goto "NEXT"
#NEXT