Cheat Codes
Go to the mutator screen and alter your team name to "EXTRASTUFF". Exit the mutator screen and save the game. Now enter the options menu and select the menu option "Configure Controls". Two new options should now be here, namely "Debug" and "First Person View" options at the bottom of the menu.
To get this cheat to work it requires the patch that enables bump mapped graphics.

Embark on an inspiring mission of human connection beyond the UCA. Sam — with companions by his side — sets out on a new journey to save humanity from extinction. Join them as they traverse a world beset by otherworldly enemies, obstacles and a haunting question: should we have connected?