okay...i made a rats map. it's my room. but that's not important. i have to use ladders to get around...right? i mean it's rats. but when i go and run my map, the ladders are there...but if i die then respawn, the dissapear. i've tried sooo many different things...none of them work. oh, and in map>check for problems it says a bunch of func_wall and func_ladder 's are empty. i dont know what the heck to do...