But wait! Sierra 7 isn't just a shooter, it's a rail shooter to be more precise. The game does all the movement for you, taking you along a predetermined course. All you have to do is point and click to shoot, and hit the [spacebar] when prompted to open doors and so forth. Press [R] to reload, and [Q] to cycle weapons. There are seven missions to play, not counting the tutorial, and before starting each one you can click on "loadout" to choose which of the weapons you've unlocked that you'll be taking with you. Whether you go in like Rambo or McClane is up to you, but when you're ready, hit "Execute" to start your selected mission. You'll need to complete each one within a certain time limit to pass, and remember; no disintegrations.
Sierra 7 is sort of an odd duck, in that it reminds me in gameplay and premise somewhat of Killer 7 (only with less talking heads in washing machines... unfortunately) but in execution it's a lot more like Swat4, if fairly watered down. Gameplay is fairly realistic; aim for the head and you'll always take an enemy down as long as you're a decent shot, guns behave and load realistically, and not every enemy has magical scoping laser headshot vision when they fire at you. There's even a level where you're required to snipe certain targets from afar, taking into consideration factors like wind speed and direction. The fact that enemy locations are randomised each time you reload a level takes some of the sting out of having to replay a level when your checkpoint was a ways back.
While things don't really start getting difficult until the last few levels, you still shouldn't expect to slack off. At least, not unless you really wanted some more ventilation in your head. As it stands, gameplay is fairly smooth, but a few bugs still popped up during my play, such as when my weapon decided firing was for suckers forcing me to reload the window, and in places the gray colour palette can make picking out your black stickmen enemies downright frustrating. More levels would have been welcome, but while it lasts Sierra 7 is still an impressive example of the genre and is practically screaming for a sequel.