"The Eagle fires near instantaneous supersonic rounds, making it an exceptional finishing weapon against wounded enemies." In-Game Description.
The Eagle is one of the secondary weapons for the Soldier. It has a low DPS and it is mostly used to finish off weakened enemies. Since it is a hitscan weapon, the Eagle has the benefit of being simple to hit targets both on the ground or in the air. Another use of for the this weapon is to pester enemies interrupting their Health Regeneration. It deals 100 to 39 damage depending on range.
The Eagle Pistol is commonly paired with the Spinfusor to provide a balaced weapons loadout. This gives the Soldier the ability to use the Spinfusor as his main weapon, but also have the ability to hit targets at range.