4 sniper rifles in a sniper game. Do you want more? Buy the DLCs.
4 pistols. Do you want more? Buy the DLCs.
4 secondary weapons. Do you want more? Buy the DLCs.
2 horde maps. Do you want more? Buy the DLCs.
9 missions. Do you want more? Buy the DLCs.
And so on, i guess you get it, right? Buy at your own risk. It lacks A LOT of content. In fact for 40 bucks it has a very low value.
Just feel free to join our discussion on the comments section. There you can see different points of view from various people.
Edit 2.0 aka "short story long" :)
SE3 cuts both ways, it is pretty much SE V2 with bigger maps (don't expect more than 2 multiple paths per map though), they got rid off cheap mechanics like health regeneration but broken stealth mechanics, a few missions, not even more than 2 horde maps to expand the duration of the game (or any kind of content, it has 0 replayability), irregular AI, mediocre/unnecessary MP and details like historical inaccuracy makes this game the worse of the series by far imo.
I'm not saying that SE1 or 2 are more replayable or have better AI, but at least from SE1 to SE2 we saw a change, and felt like a new game for good or bad. In other words, it was a step in a different direction in some features and in others a step forward or backwards but a step nonetheless. Here it's a lazy move. This is the best they could come up with after 2 years? Pathetic.
Not just that but it doesn't offer enough content to justify full price, and overall feels more like an expansion/dlc for SE V2. And of course this "game" already has 12 DLCs which add what Rebellion cut off the final game to be sold separately for extra cash. The perfect money grab.
The game is a shell of its former self. If you still interested i would recommend you to wait till sales and get the complete package cheap as chips. After all, is your choice.