Time for another fun build!
The Super Fun Rifle/Pistol+Shield/Flamethrower Engineer!
Time for some fun blowing things up! This skill build is focused on three hybrid playstyles: Keep away with the rifle, defensive with your Pistol+Shield, and going toe-to-toe with the flamethrower. The diversity of this build will allow you to easily overcome lots of different setups, by simply swapping out the weapon.
The rifle, is the prime, and only, choice for playing keep away from enemies that really shouldn't get close, or dueling with another ranged class. Hip shot is your simple nuke, net shot will immobilize to help keep them away. Blunderbuss is an interesting skill, which, combined with the flamethrower, will let you do a ton of damage up close. Overcharged shot is perfect for this setup, knocks you away from the foe, and the foe away from you! Jump shot is another interesting skill, and your go to skill for getting in before swapping to the flamethrower.
The pistol+shield, is perfect for playing defensive. Explosive shot is your regular nuke, Dart volley most likely has a poison effect to it, so it's good for some damage over time while recovering. Static shot is a nice defensive shot, that will help mitigate damage while keep yourself alive. Absorb sounds VERY interesting, since it seems to work like both a defensive skill to absorb the attack, and offensive skill to fire it back. Deploy Ballistic barrier is another good skill if the gap between the enemy is opened, and they switch to a ranged weapon.