| Tier | Unit Type | Shoulder Sleeve Insignia (SSI) | Description |
|---|---|---|---|
| 1 | Delta Force | .svg) |
Simply known as "The Unit", Delta force was not officially recognized until recently. These Airborne-qualified Tier 1 operators are all highly experienced, with the overwhelming majority coming from the Ranger regiments or Special Forces groups. |
| 2 | Special Forces |  |
Also known as the "Green Berets", These are the original "best of the best", only second to Delta Force. They are Airborne-qualified, and most come to SF with the Ranger tab or obtain it shortly thereafter. |
| 3 | Rangers |   |
These are considered the first special operations unit. One example is the 1st Ranger Battalion. All Rangers are Airborne-qualified. Members of the Ranger regiments do not automatically gain the yellow and black Ranger tab, they must earn it! |
| 4 | Airborne Units |  |
Airborne units are a step up from the regular Army units. All members are Airborne-qualified light infantry. Example shown is the 173rd Airborne Brigade |
| 5 (Lowest) |
Regular Units |  |
The U.S. Army is mostly comprised of regular units. These soldiers are non-Airborne-qualified. Example shown is the 1st Calvary Division. |
