nope, now that u explained ur situation its not hard at all. =D.
white walls- all the walls turn white (basically see through) and you can see everyone from anywhere. its just like there no walls but you cant walk through them or anything like that lol, ts kind of like chams i guess, and the nametag in that u can know where people are but you dont know who is on ur team (unless there close enough and the game lets you know what there names (blue or red) are. this is i think better than chams. lol thats all what white walls does.