Everybody knows that, in relation to the other Gears of War games, the third of the series came out with a lot of improvements. On the other hand, the Retro Lancers, the Sawed-off shotguns and some other big problems came to prove the opposite. Anyway, it is very easy to understand why did Epic added those "problems" to the game, once Gears of War is a game for skilled players only.
However, there is a little problem that I believe Epic could fix: the bots, or AI players. In ranked matches, its very usual when players connection fall down and, consequently, a bot came in his place. For real, this messy very mutch with the match, once the bot always keep atacking and atacking, loosing all the TeamDeathmatch respawns. With all those DLCs and mercenary ways to get money from us, the REAL Gears of War players since the beginning of the series, I think Epic could actually fix REAL problems on the game itself instead of just mess it, more and more.
Another real annoying problem, that came out after the "Fenix Rising" DLC, is the "Hedgehog Effect". Here are some videos of people who always get messed by this glitch:
I honestly expect this little words come to Epic games someday, so that those problems can be finally fixed.