Experience or XP is used to gain levels. Mike can gain XP in a vast number of ways.
- Some perks grant XP.
- Avoiding enemies grants bonus XP at the end of a mission.
- Using non-lethal or lethal force to defeat enemies grants immediate XP.
- Picking locks, hacking computers and bypassing consoles all grant either 25XP, 50XP or 100XP depending on difficulty and mission importance.
- Completing mission objectives and bonus objectives grant XP.
Once Agent Thorton has gained enough XP to go up to the next level the game will inform you and you may choose to level up at any time using the service record page. Or the game will automatically bring you to the service record page the next time you change locations.