1. In mission editor, place a soldier unit. Preview mission.
2. Move forward/backward to confirm default movement speed is jogging.
3. Turn on tactical pace (default press C).
4. Move forward/backward to confirm tactical pace is on.
5. Bring up rifle sights (double right click? is default, but I have bound it to V).
6. Move forward/backward. Note the movement speed is now jogging instead of tactical pace, and it is not possible to use sights while moving.
7. Stop moving, and bring up the sights.
8. Turn on tactical pace.
9. Move forward/backward. Note the movement speed remains at tactical pace as intended.