A bonafide zombie killing machine.
Dean is generally a very outgoing person, always finding the bright side to things and keeping a positive attitude.
He tends to be too bright sometimes, often leading to overconfidence in his abilities.
Dean doesn't generally carry that many guns, but he doesn't really need to. He pilots mechs, which he often builds himself. He has become very skilled with piloting mechs, and he knows his way in and around one.
He often builds mechs resembling this:
http://www.google.com/imgres?imgurl=http://www.3drt.com/3dm/characters/mech-robots-pack/character-sci-fi-3D-lowpoly-mech-robots-collection_09.jpg&imgrefurl=http://www.3drt.com/3dm/characters/mech-robots-pack/mech-walker-pack-shots.htm&usg=__jpWXOFq_7gfycP979ZOjEvcDkAw=&h=600&w=600&sz=72&hl=en&start=0&zoom=1&tbnid=qanPUgw40ki5iM:&tbnh=171&tbnw=149&ei=uF-WTfvJLoKesQOeq5G-BQ&prev=/images%3Fq%3Dmech%26um%3D1%26hl%3Den%26biw%3D1003%26bih%3D563%26tbm%3Disch&um=1&itbs=1&iact=rc&dur=297&oei=uF-WTfvJLoKesQOeq5G-BQ&page=1&ndsp=10&ved=1t:429,r:1,s:0&tx=113&ty=109
Or this:
http://www.google.com/imgres?imgurl=http://foroanime.com/foros-de-anime/21707-otaku-dark-dragon-albums-que-sea-2066-imagen-mech-blood-asp-48379.jpg&imgrefurl=http://forum.blockland.us/index.php%3Ftopic%3D86437.0&usg=__CyQPU0C9lQiIMOEvKCk-LBEkE7c=&h=500&w=474&sz=118&hl=en&start=0&zoom=1&tbnid=4OQWNiIvx9QSKM:&tbnh=157&tbnw=149&ei=uF-WTfvJLoKesQOeq5G-BQ&prev=/images%3Fq%3Dmech%26um%3D1%26hl%3Den%26biw%3D1003%26bih%3D563%26tbm%3Disch&um=1&itbs=1&iact=rc&dur=141&oei=uF-WTfvJLoKesQOeq5G-BQ&page=1&ndsp=10&ved=1t:429,r:3,s:0&tx=70&ty=107
Or even this:
http://www.google.com/imgres?imgurl=http://1.bp.blogspot.com/__Awhseomnfo/R_EcOouvGMI/AAAAAAAAACI/HW7U0VCnDkM/S660/goliath%252Bawesomeness.jpg&imgrefurl=http://forums.playfire.com/general-discussion/thread/33580&usg=__D9O2yXy3lR2_Mq0mptGlU0rKMHo=&h=371&w=660&sz=68&hl=en&start=2&zoom=1&tbnid=Uzs0rfZeD4CfSM:&tbnh=78&tbnw=138&ei=zWCWTYeEPJGasAOj5OS9BQ&prev=/images%3Fq%3DGoliath%2Bchimera%26um%3D1%26hl%3Den%26biw%3D1003%26bih%3D563%26tbm%3Disch&um=1&itbs=1
meh.