User blog comment:Fredy-san/Under rated stuffs part 3/@comment-25926644-20151215070930/@comment-24659969-20160102031613

53.82% for 11, CD 25

rounded up, 54% x 11/25 = 23.76% natural average DPS increase which stacks with everything (Crit, Killing spree, deadly augment, other buffs) ONLY IF you have it activated all the time whenever it off-cooldown even for just a second from the start to the end.

While DF and one Adrenaline provides more sustained thing. Also remember, increase in raw damage = less bullets spent to kill a boss. So DF is indirectly gives you ammo efficiency for that. Well you might not consider this if you hacking though. Some others find more optimal build like half-half of 10 Adrenaline and 15 DF

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That is why I only said you only take one skill of it. Level 1 Aerial bombardment allows you to kill walkers or runners behind the door even in NM level 400. Play in VIP, before entering a door, you can activate bombardment to other corridors and nab some kills before your friend do.

The main topic for SMG is its low cost ammo for the entire gun in the category. Of course there are some others low cost such as those HVM shotguns, rifles, pistols such as Mustang and Ronson, hardthorn, Sublight, etc.

I am not talking about how shit is Stripper, I am giving example how you should count how big the damage boost of 5th mastery shotgun to your guns which is why the Shotgun mastery tree is considered balance to all others tree such as Sniper and Assault.