I've been playing on the Lonesome Road DLC since it came out and every time I go to the Third Street Municipal Building the armor isn't there. The first time I went not only the armor but the body itself was no where to be seen. I'm pretty sure the body glitched into the wall somewhere but I've tried to throw grenades in that area to see if the body would fly out of the wall or something but nothing happened. Any thoughts of what I can do to get a hold on that armor?

Just for clarification, you know you have to climb through a pipe to the top floor to get to the body right? It's not on the first floor.

Sorry but your fears that it glitched are probably correct, just be sure you are looking in the right place and check on the ground below in case it fell off. use this to check were it should be-http://www.youtube.com/watch?v=Ee1ijZT-L7w
If you want other armor that looks like it you could use one of the other riot armors or this, from the honest hearts dlc--http://fallout.wikia.com/wiki/Desert_Ranger_combat_armor

Everytime I checked I went to the third floor, actually now that I remember the sniper rifle was glitched half way into the floor.

And thanks, I have those and the advanced is the one I've been using but the elite looks so bad ass, I don't really care what the DT is, but if it's a glitch then I'll have to stick with the advanced and desert.