Game or sim?

[quitefrankly]

Hello. Is this meant to be a simulation or a game? If its a simulation, then I think I probably just bought the wrong thing. But if its a game, then I think I'm missing something, or doing something wrong. Anyway, this is what it seems like to me:

I get a mission, and its only ever one of about 3 or 4 things... Take a photo, deliver a spy/supplies, or patrol. So I set off from port, I go to the objective, I sink some ships, and then I return to base. And then its that all over again, again, and again?

Is that it? If that IS it, then thats ok... I'm not attacking the game or anything. Its a simulation and the depth is in the controlling of the sub and perfecting your attacks and stuff. But I was just hoping for it to be more of a game. Flight Simulator X I find boring. But something like Lock On, I really enjoy, because there are lots of missions and each one seems completely different, even although I am still doing pretty much the same thing.

But anyway, I'm about to uninstall this, so I thought I would ask incase I'm missing something and someone can maybe help. I just seem to be getting the same missions over and over, and its almost like a vague excuse to leave the port and blow up ships. I spent the first week figuring out how to play, but then its just sail to the deep ocean, blow up a bunch of ships, sail home, and repeat a million times. And I just don't really understand that. If thats all it is, then I can understand that its just a sim. But I would still find it odd that they didn't try to dress it up a bit nicer and add in some more missions or something.

Am I looking at this the wrong way?

Thanks.

p.s. I completed a campaign and its the least impressed I've ever been after completing a campaign in any game. And the only option left for me, was to just do it all over again in another campaign. I think I'm maybe more suited to flight sims?