Homunculus infected human

Part two of my project revolving around small homunculus creatures being sold as pets like seamonkeys, only for it to go very wrong.

I really wanted to create a design inspired by games like System Shock 2 and Resident Evil 2 (particularly its recent remake). I really enjoy how in System Shock and Resident evil you encounter enemies in otherwise normal bland locations, like the Raccoon city police department (with zombies wearing officers uniforms). I wanted to apply this to an office environment themed loosely around the 70s. Potentially enemies could be seen infected, but still retaining remnants of their past selves, hurling hot coffee at the player or using a stapler as a stabbing device?