An autofire attack can provide cover for an ally. Take a full action and
choose an ally in your line of sight, who receives a +4 dodge bonus
against enemies in your line of sight and in range of your autofire attack.
(You have to be able to shoot at them to get them to keep their heads
down or this maneuver won’t work.) You cannot lay down covering fire for
an ally in melee. Each character after the first who lays down covering fire
for the same individual grants an additional +1 dodge bonus. All covering
fire attackers receive a free attack if an opponent chooses to ignore the
dodge bonus granted to the protected target.