Most refreshing shooter in years.
What I found was an open ended game filled with tension and outstanding level design.
This game reminds me of a mix between Hidden & Dangerous and Deux Ex. If you played those two titels and enjoy a open-ended-stealth-shooter type of game you'll probably like Sniper Elite.
The game provides a number of tools and weapons to deal with your enemies however you please while the sniping action is definitly satisfying on the higher difficulty settings.
Although the gameplay is outstanding comapred to mist on-rails shooters it does have it's low points. Since most of the levels are large and you spend most of the time crawling you'll need alot of patient to get through them. In some missions and scripted events the AI is always aware of your locations which is rather annoying. Also the enemies have a set accuracy that's independent of distance which is a bit silly when you get nailed by a machine gun from 200 meters on higher difficulty settings while on lower difficulty enemies hav trouble hitting thigns that are right in front of their face.
The graphics are low end and won't require a beefy machine to run, yet the city textures are outstanding and almost photorealistic. No WW2 shooter has such accurate representations of European city scapes as this game.
The sound is good, although it can get a tad repetitive due to the frequent reoccurance of all the effects.
I have not tried multiplayer so can't comment on that.