Builds for killing a boss in 15 seconds achievement?

[VivyBnuuy]

Any build suggestions to pull this off? I've gotten all the other achievements from the update, but I'm really not sure how to go about this one. I've tried making a couple glass cannon builds but haven't had much luck with this so far. Closest I've gotten to it was 23 seconds with a full explosion build.

[JohnnyBazooka89]

Just go endless and you get this achievement easily after wave 20.

[Jaasrg]

SMGs/Shotguns on Ranger/Entrepreneur/Loud/whatever.
Explosives help clear waves, but lackluster against elites&bosses.

[Endy]

Cyborg. Increase Ranged Damage a lot and switch to 6 ranged weapons at least after wave 19.

[Twiz Amber]

Cyborg. I used 5 revolvers and 1 minigun. End boss melted in less than 10 seconds. Also items with 25% dmg increase against boss/elite mobs helps. In my playthrough, I had 2 of those as well.

[reVolt™]

I did this with the one armed guy and a shotgun. Was kind of easy.

[VivyBnuuy]

Thanks for the help - Cyborg with 6 guns worked like a charm!

[LocalCatMom~]

Cyborg did it easily with high ranged attack.

[Wavy]

I did it with an immortal bull build. I just stacked up on lots of HP regeneration and life steal then ran into the elite over and over and I killed it under 15 seconds. But cyborg is a way better option especially if you don't have bull.

[Vultan]

One arm smg. everything just damage. braaap braap

[Abrese]

Originally posted by reVolt™:

I did this with the one armed guy and a shotgun. Was kind of easy.

Yo thank you my man! I should have known One Armed would be the way after my first win with it. I killed the boss pretty quickly using smg then. I didnt even think of using one armed with a shotty for the 15sec boss achievement
Thank you again