Direct one of the mercs to travel a longer distance
than the available action points. Watch the action point total
as it decreases. When the action points are below the number needed
to shoot, but still more than zero, click the Right Mouse
Button on the merc to spin it around and display three buttons.
Click on the "Reserve Points" button, which should have
been unchecked previously. Click the Right Mouse Button
on the merc to spin it back. The merc will continue walking to
the destination while ignoring the action point limit.