A and D to move, space bar to jump, W and S to climb or descend.

Right click to take out or stow gun and flashlight.

With flashlight over a point of interest, press E to interact. In the interact menu, WASD to navigate to the different options

In the conversation menu, W and D to scroll between options, space bar to select one.

Esc to bring up the settings and your operating parameters. On this screen and in the operating parameters screen you can use the arrow keys to navigate.

Once you find a functional weapon, press F to toggle between the laser sight and the flashlight. Press and hold left click to fire.

Press shift to take cover. Once you unlock the cloak, press and hold shift to activate it.

Press F to execute an unaware enemy

Press space bar to execute an enemy on the opposite side of the same cover you are in.

Be sure to take out your gun before you need it. It will take a moment to ready it. You can shoot whether you are in flashlight or laser sight mode, and shooting will automatically toggle you to laser sight mode.

For those struggling with the Military Machine triumph, you should wait until you are as close as possible to start shooting. If you shoot too soon, the security robots will have time to take cover.

To take down unaware enemies, use your cloak to study their movement patterns, so you can be ready. Take out your gun preemptively or you will not be able to execute them.

If you find yourself getting injured or dying, cloak or hide until your shield recovers.