The Vigilante

I'm trying to join my favorite map with one of my favorite hosts, TLC, and I've had this problem with them on a couple maps. I'm joining the server just fine and then after it does the "requestion authentication" and all that, it loads and does some numbers at the bottom right with the bar blank, once it goes to 2 or 3, I end up not being able to leave the loading screen, but it acts as if I'm playing as I can hear my footsteps or in this case, swimming ( On namalsk, that's bad lol ) And ideas to fix this would be much appreciated. I'll attach a photo to show what I see when I can hear the game.

Oh you said outside of Steam, nvm.

My server is overpoch as well, as I haven't had this problem when this map was an epoch. I have gotten my Dayz mod from Steam and will try this if I can figure out how to do it, thanks.