User blog comment:A Wikia Contributor 9337/Heavy build explanation/@comment-123.211.182.164-20160116122310/@comment-25926644-20160117014029

@Fredy.

1. Most people don't get much HTL until lvl 90-100. Even w/ HTL, you'll still want pierce due to the large hordes in nm400.

2. Single DPS of trail is lower than 45 or mustang, but due to dmg per target pierce multiplier, trail has the highest DPS.

3. Energy resilient zombs are why you need adapt. If a gun is gonna suck in nm, it'll have almost no use.

@anon. trailblazer