Who let the dog out?

Timestamps:
00:00 Intro
0:08 Dog Talk
1:04 Handler's Skills
4:24 Handler's Perks
8:38 Handler's Trait
9:55 Guard Dog Build
10:56 Support Dog Build
11:49 Attack Dog Build
12:42 How Handler Performs on Apocalypse
13:31 Outro
14:08 Ending Bit