This is the wedding mission:Wot?30 min of shooting? I replayed the game recently to the end after abandoning it early on a previous playthrough and there was shooting and more shooting on a hospital, shooting and more shooting on a cemetery, shooting and more shooting on a skyscrapper under construction, shooting and more shooting on a warehouse, shooting and more shooting on a wedding, shooting and more shooting on a club, shooting and more shooting on some port chasing some gangster that did the shooting on the wedding and there was shooting and more shooting on a restaurant leading to the final "fight". There was tons of shooting after the warehouse level, more than enough to make me annoyed. I won't even count the chases and some optional content.I don't know what game did you play but Sleeping Dogs had barely any shooting. Especially not "uninspired shooting galleries after shooting galleries,". It had maybe 30 minutes of shooting, and even then it was optional. It was Kung fu all the way.Man, Sleeping Dogs started with the whole Bruce Lee/Jackie Chan action and ended and breaking my heart by uninspired shooting galleries after shooting galleries, the story never gone somewhere too but at least it tried, what I can't say about GTA IV.Sleeping Dogs was damn good too. Better than GTA4.
The variety of enemies on shooting sections was non-existant and as I mentioned, the shooting happened on a bunch of different places but the shooting itself with you only carrying one weapon, the enemies don't having grenades, the level design linear and enemies mostly behaving predictably made it very unsinspired. The slow time mechanic was somewhat fun but didn't overcome the by the numbers shooting. The parts where you did some punching gone from 100% at the start to very rare as the game story line missions progressed.
The shooting segments last from the 4 minute mark until the 8 minutes. And usually the shooting segments are just that, a few minutes long. If you add up the the shooting time on the levels you listed, you get n no more than 30-40 minutes. I agree that the shooting was shit, maybe that's why you remember it being longer than it was actually.