Observed:
The option "Tactical Pace 3 sec" is a very good addition but it enables tactical pace not for 3 seconds but just under 2 seconds. Tested in normal forward running movement speed.
Expected:
The option should enable tactical pace for no less than 3 seconds.
GIF running at 33 fps showing the duration of tactical pace, action is bound to LMB.
http://i.imgur.com/iXI3isj.gif
I can confirm this. approx 2 seconds is all.
I also attempted to remap my keys to 2xC for Combat pace toggle, and C for "Combat pace 3 sec". It seems the short duration overrides the toggle and neither of them work on double tapped C.
Yesterday I tested it with the latest stable and tactical pace lasted for pretty much 3 seconds, so this is limited to the DEV build, if not introduced in it.