Military shooters: a few years ago I would have used the term 'shooter' to describe games like Turok 2, Duke Nukem and Doom since they were the most common and dominant variety. Games like Ghost Recon and Rainbow Six where your character dies in one or two shots and you were having to use actual military equipment/lingo/manevures were more specialist, and as such, were far fewer in number and less popular (and presumeably higher in quality as a result).
Nowadays, I can't look for a decent shooter thats been released in the last couple of years without having to sift through heaps and piles of Halo clones and Tom Clancy knock-offs.
Secondly, Snipers: It is only in recent times that I've grown to loath and despise sniper rifles in games, they are useually overpowered, require little talent to use and neglect to include the traditional vulnerability of the sniper, that being close range fights (I've been no-scoped far too much in the past). When was the last time in a game that the first gun everyone would run and grab was a machine gun or (God forbid) a shotgun? When did everyone develop a morbid fear of anything that doesn't fire hyper-velocity, 1-hit kill rounds?
Thirdly, Iraq: While I understand that games need to keep up with the time they are made and keep a certain level of topicality, why the hell are there so many games that are based on the conflict in Iraq or have taken design points from it? (let's face it, Gears of War was based on it, Rainbow Six had a couple of games set during 'the war on Terror' and am I the only one who interpreted the Covenant in Halo as being an intergalactic Taliban?). I miss tha good old dark and gothic settings of the 90's, Unreal Tournament had levels that were set in castles, cathedrals, ancient ruins and run down industrial plants (while more recent versions are all set in shiney, chrome space stations and occasionally you'll get a bit of rust), Turok 2 had you gunning your way through ruined cities, the Death marshes (and I think you even go through an occult underworld at one point).
Whats more interesting? Bombed out street with the occasional propaganda poster? Or something that looks like it was designed by Marilyn Manson and Tim Burton? (if you can honestly say the first one, I probably don't want to know you).