Monst3r

Derek Mossman, better known as Monst3r, is an unlockable Agent. He is unlocked the first time you clear Experienced Mode. Unlike the eight normal agents, he has no archive version, though a younger version of him is playable as a separate Agent in the Contingency Plan DLC.

Perks
Monst3r's custom augment, Fabricator Multithreading, gives him a 15% discount when buying items from nanofabs. He begins with Hacking 3 and a unique weapon, the Overclocked Neural D.A.R.T. This weapon only vaguely resembles a standard Neural D.A.R.T., as it has been modified to have armour piercing 3 (the highest of any weapon in the game) and to operator on a cooldown timer of 8 rather than needing ammo. However, it comes with a powerful drawback: each time it is fired, a random daemon is immediately installed.

Strategy
Monst3r needs to get another weapon ASAP, as the drawback of his custom gun is unpredictable and often rather painful. It's a very good weapon of last resort, however, able to knock out even an OMNI Soldier unassisted. His augment makes buying gear much less expensive, so he partners well with characters that need some investment to shine (like Sharp). Of course, he also partners well with Central, who generates PWR every time a daemon goes off.