Perhaps it is you that don't aim particularly well, Arthur, rather than it being the guns' fault given the large number of reviewers (see Metacritic) and gamers (see Youtube) who have no trouble being extremely accurate with them. It would be so nice if you would take responsibility for your own inadequacies and idiosyncrasies for once, instead of acting like it's always the reviewers who liked a game who are the weird, illogical ones when you don't happen to like that game.
You talking about Vanquish not being good from a mechanical perspective reminds me of Ryan Scott saying that that Ninja Gaiden (Black) on the Xbox is a horrible game with bad controls. Comical, in other words.
And your claim that the reviews of the game emphasize the style of Vanquish over the substance of the game is a very selective reading. Reviews from Gamespot (quoted), Edge, Eurogamer, 1up and even IGN are at pains to point out that the game succeeds because of the gameplay. Your crackpot conspiracy theory that Vanquish only has a good average review score because all the Godhand/Clover fanboys in the gaming press demanded to review it shows you have no respect for your colleagues in the profession. That inability to accept being in the minority without concocting some grand reason why everyone else is wrong has sadly become your calling card.
"Vanquish's original mechanics wouldn't have the same impact if the game didn't also deliver the basics, but the essential gameplay elements are as good as you could hope for. For example, the cover system has exactly the right degree of stickiness, which is an important factor in ensuring that you always feel completely in command. In fact, considering the amount of chaos surrounding you and the speed with which you rocket ahead, it's a wonder that you rarely feel out of control. Regardless of which platform you prefer, the controls are tight and responsive, and the asymmetrical levels practically guarantee that you never feel lost
As a result, even the most challenging sequences never feel unfair, because you are always in control of your own destiny. The factors that contribute to Vanquish's substantial level of difficulty are perfectly tuned. The bosses are tough but don't possess absurdly inflated life bars, so the fights last just the right amount of time. The artificial intelligence is surprisingly solid for a game that throws so many enemies at you at once; your foes stay on the move, use cover in smart ways, and aren't afraid to run up and cuff you if you come in too close"