Doom/Controls


 * Ctrl : Fire, hold Control down to fire rapidly
 * updown : Move forwards/backwards
 * leftright : turn left/right
 * Shift : hold while moving to run
 * Alt : hold while using left or right to strafe (move sideways)
 * Space : Activate Switches, Open Doors etc...
 * Enter : Shows the last message that appeared in the top left corner in the Screen, or to select something in the menu
 * Tab : View the Map
 * Esc : View menu (this can be used any time in the game, including at the title screen, and ending texture screen)