There is an easy way to create one yourself.
1. Launch DayZ through STEAM.
2. Once you are in a game n want to start running do the following:
- Hold down your movement key (W)
- While doing this, open your STEAM overlay (Shift+Tab)
- Release your movement key once the STEAM overlay is open
- You should see your character is still running while the overlay is open
- Close the overlay & your character should still be running