Projectile Dragon

For effects targeting creatures by type, disintegrator dragons count as both dragons and constructs (whichever allows an ability to affect them for abilities that affect only one of those types, and whichever is worse for abilities that affect both types). They receive a +2 racial bonus to saving throws against disease, mind-affecting effects, and poison unless those effects specifically target constructs. Additionally, they’re protected from environmental effects as if wearing armor (of an item level equal to the dragon’s CR) with its environmental protection active.

As a full action, the projectile dragon can make its gunhead attack with the automatic weapon special property, expending 20 rounds of ammunition as though it had a usage of 1 round. These attacks gain heavy onslaught (as the soldier gear boost), using the dragon’s CR as its soldier level.