I think the guys over at Splash Damage were like
Goddamn these whiners crying about fragger being OP
lets just give him to everyone and solve the problem
Hahaha splashdamage you guys are so legit
http://www.pcgamer.com/watch-the-full-dirty-bomb-e3-trailer-and-get-a-free-mercenary/
Very Nice trailer ,Nice to see some kind of …whats coming (mercs)in it .Still I strongly beleive the needs to make gameplay less repetitive by adding what I already said in previous posts
Got mine yesterday, made me very happy to have not used my credits on this merc yet.
A new blog post has been added:
Dirty Bomb E3 Trailer and Free Fraggers
Amidst the madness of E3 2015, our own Paul Wedgwood presented a shiny new cinematic trailer for Dirty Bomb at the inaugural PC Gaming Show. Check it out below:
We also announced a giveaway on PCGamer.com – 100,000 free codes for the grenade lovin’ Merc Fragger. Try getting your hands on him here, before he’s all gone!
Anyone with tips for Fragger noobs? Expound your advice in the comments below!
Fragger pro-tips:
I bounced the grenades right in front of my own feet a couple of times at the beginning. Don’t do that!
Other than that he’s pretty straight forward, i guess.
I noticed that there’s always an enemy running around the corner as soon as i retreat for the lengthy reload animation. So, be prepared to switch weapons 
Got mine :D. I always loved handgrenades since Quake 3 Fortress, and I’m pretty good with them.
I like seeing Phantom again, since some people were saying we wasn’t coming back and I was starting to believe it.
… Fragger is still available … push
was just made aware of this giveaway via in game chat, thought “why the heck isn’t this on the forumz?” … searched and lo’ and behold … it must’ve rushed past my cone of attention. so pushing this to the top … maybe there are more like me 
I’m more worried about Phoenix. I want to make sure they eat plenty of fruit, but Phoenix is not introduced in the E3 ‘Scrubs’ trailer. Technically he just makes a cameo, his name isn’t mentioned like Rhino, Bushwacker, Nader, Kira, Phantom, Fletcher, Sparks or Turtle (most likely the next merc after Phantom). Might be an oversight.
Wrong, only the members of the attacking team are named in the video: Rhino, Fletcher, Sparks, Phantom and Kira (in that order). No one in the defending team is mentioned by name, but they all get to show their unique ability (well one of them for Phoenix…) except Vassili. So I don’t see anything in there which suggests that Turtle is likely to come out sooner than Phoenix…
not sure if this promo still active for free fragger but if so i really want him it only merc i want !!