There's a squad strategy game coming to iPhone soon - and you may well recognise a couple of its characters.
Armed and Dangerous puts you in control of a squad of soldiers, each with specific abilities and strengths, as they take on the incoming enemy.
All sounds perfectly normal - until you take a closer look. The majority of the character models have clearly been inspired by popular team shooter Team Fortress 2.
In fact, the Grunt character is a rip of TF2's Heavy, from the square jaw to the ammo shoulder strap.
The character classes are the same, too - there's the Grunt (Heavy), Scout, Sniper and Technician (Engineer).