There are a few different methods circling now to effectively run through walls. The method I've been most successful with is-
1) Go into first-person mode
2) Double tap W and sprint at desired wall.
3) Spam F when approaching and connecting with desired wall.
This will provide an exceptional amount of collision that should shoot you through the wall to the other side. I haven't made a video of my own but here are a few that I found to help further illustrate what I'm talking about:
Dayz standalone exploit: How To Run Through Walls - YouTube
Wall Glitch - DayZ SA Glitches: Ep. 1 - YouTube
If you find yourself stuck inside a wall that you cannot get out of, try tapping V into the wall a couple times. If that doesn't work hit V then go prone while in the V animation. This should shoot you back out.