This is currently the aimed build of the creator, ARevolvingDoor, it is built for versatility in combat, also meaning Bloodwing is somewhat less reliable, although your guns are incredibly more reliable with this build.

View on Official Skill Tree Calculator Starting Skill Bloodwing Gain the ability to summon a pet Bloodwing out to attack an enemy and then return. Cooldown: 28 seconds					Mordecai Purge
Tier	Sniper Tree		Rogue Tree		Gunslinger Tree
1	0	5/5	5/5	0	5/5	0
2	0	5/5	5/5	0	5/5	5/5
3	0	5/5	0	0	0	0
4	5/5		0		0
Totals	20		10		15
	Required Level: 50