Oh, good lord. This is A-grade cringe-fuel. Certainly not the worst video game trailer ever, but that's not much of a complement. It's just trying so hard to have this air of charming flippancy about the characters' attitudes, but it just comes off as the work of a bunch of bean-counters in an office somewhere. Maybe I'm just a grumpy old bastard, but I can't stand these stupid unfunny quips.
Also, I had no idea this was live action. It looks so much like a pre-rendered trailer that I can't even tell, which, if anything, is at least some praise of the overall quality of CGI trailers these days.