The Sentinel is 1 of 6 playable classes (characters) in the science fiction TPS indie game Earth Protect Squad by French/Russian developer(s) Kisunja Studio. The Sentinel is the most durable character of the Earth Protect Squad (that doesn’t cost real currency to unlock), but is also the slowest character. It has 600 hit points. It’s special ability is to launch a supply drop of ammunition that refills ammo of the Sentinel and his teammates. It is one of 2 characters that have visible faces.