MULTIATTACK
There are three ways in which a Multiattack effect can be used
SINGLE TARGET
To use a Multiattack against a single target, make your attack check normally. If successful, every degree of success counts as two degrees of success.
MULTIPLE TARGETS
You can use Multiattack to hit multiple targets at once by “walking” or “spraying” the Multiattack across an arc. Roll one attack check per target in the arc. You suffer disadvantage to each check equal to the total number of targets. So making a Multiattack against five targets is a –5 disadvantage to each attack check. If you miss one target, you may still attempt to hit the others.
COVERING ATTACK
A Multiattack can provide cover for allies. Take a standard action and choose any allies in your line of sight, who receives the benefits of cover against enemies in your line of sight and in range of your Multiattack. (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 a covering attack for an ally in close combat. An opponent can choose to ignore the cover provided by your covering attack at the cost of being automatically attacked by it; make a normal attack check to hit that opponent.
