Powerfist

Powerfists are identical to Sawmen, but these units use Furaxes instead. Like Flameblades, they tend to take cover until a player is close, which can allow them to ambush players. This is further aided by their fast sprint speed. Powerfists have a much longer charge time than Sawmen, but if one hits you it will deal substantial damage that bypasses shields.

Tactics

 * When Powerfists "prepare" to hit their target, their animation speed is set to be slower compared to other melee Grineer. This makes Headshots surprisingly convenient.
 * This is a very uncommon enemy type, normally appearing in small numbers in Grineer Capture missions and very rarely in Exterminate. It will otherwise only appear in Alerts, with particularly good spawn rates in Survival and Mobile Defense.

Bugs

 * Powerfists seem to be able to instantly activate the alarm/lockdown by simply kneeing the console. They share this capability with Elite Crewmen, implying that this is not a bug.