I have to glitches in snow valley to show you. You may already know these but I dont believe anyone has released them.
The first one isnt that useful, but it is cool and you have to kill yourself to get out.
Go to the Bravo base that you would spawn in for CTF, the one with the tents. Go to the first tent the one farthest from the house. Go to the opening and crouch and move straight while going left and right. (you need to be looking toward the right a little bit.
Its not really usefull, its just u jump off big tower liek the highest poitn in map where all the snipers b at usually and jump to the place and u fall thru to the like tunnel thigns without any fall damage. not exactly usefull unless you want to get rid of a tail... or u have the flag. havent played in a while so sorry im not that descriptive , im going to start laying again soon xD