Well I didn't fully and completely research my answer before voting.
I like having mechanical pets and a gun on my hunter but I dont like that all those pets are melee.
I like how warlocks have the imp and doom guard stand back with them and fire spells at a range.
All I'm asking for in a Tinker class is, give me a gun, and let me drop turrets or have turret bots follow me around so that I can stand back and bombard enemies.