這是照裝備的撥補來劃分的，由於SFG被視為是戰力倍增器，而不是最終的解決方案，所以被排到第3級，但這樣分級確實讓SFG的士氣有所影響。
因為現在大部分都是看直接行動的成效來決定，而這對SFG不公平。
雖然SFG也有直接行動的能力，但這不是SFG成立的主要目的。
SFG的強項在於他們的軟實力，以"人"為中心，透過跟當地人最直接的交流，從根本去改變當地的情況。

学习 。。。

由于网上键盘军事专家比较多，请看来自美国特种作战杂志的解释。
We all already know almost everything about Tier 1 and Tier 2, but what is with the Tier 3? Ever since the Operation Neptune Spear (Osama bin Laden raid), the United States has gone bonkers for US Navy SEALs and Military Special Operations Forces in general. In the United States military special operations forces hierarchy, there are three different Tiers used to classify units, unofficially.
Because there is no official US Military system that ranks the US Special Operations units in the United States by their effectiveness, missions, capabilities, training, or security level. This would include the use of “Tier” in such a non-existence ranking system. DOD manual on Terms does not have a Tier system of the ranking list.
Tier 1 is reserved for the best of the best, while Tier 2 is the pot for regular SOF units (etc. Navy SEALs) and Tier 3 is reserved for large and conventional warfare units.
The Tier system was designed by JSOC (Joint Special Operations Command). Some information suggests that Tiers are also classified by the fundings they get. Tier 1 receives the most, then Tier 2, etc. However, today people associate Tier level with unit prestige and skill. Yes, it’s true that Tier 1 units are more prestigious than Tier 2 or 3 units, but that’s not technically how it works.
Tier 3 forces are considered as large and conventional warfare units. This level has the most people and the lowest amount of funding when compared to the levels below it (visually speaking). Their training also tends to be more “basic” when compared to Tier 2and Tier 1 units.
TIER 3 UNITS
Tier 3 can be also referred to as “White,” and comprise larger infantry support elements. These are not special forces units, but provide broad manpower support when needed for large-scale engagements. Some examples are:
US Army’s 10th Mountain Division
82nd Airborne Division
101st Airborne Division
Marine Corps Recon Battalions
Force Recon Companies
MEU(SOC)
Navy Riverines
Air Force 142d Fighter Wing
147th Reconnaissance Wing
In fact, Tier 3 is the “hammer” in the “Hammer and Scalpel” analogy.

请留意这段话：Because there is no official US Military system that ranks the US Special Operations units in the United States by their effectiveness, missions, capabilities, training, or security level. This would include the use of “Tier” in such a non-existence ranking system. DOD manual on Terms does not have a Tier system of the ranking list.
翻译：因为美国没有一个官方的军事系统，能根据美国特种作战部队的效能、任务、能力、训练或安全级别对其进行排名。包括在这样一个不存在的排名系统中使用“级别”，国防部的指引并没有层级排名机制。
你可以理解：
Tier 1是为了高度机密行动和让优秀的特种兵进阶的队伍（如：CAG、RAA、24th STS 、DEVGRU、ISA等）
Tier 2是常规特种作战单位（如：S.E.A.L、Green Berets、75th Ranger Regiment等）
Tier 3是为大型和常规战争单位保留的精锐部队（如：101st、82nd、Force Recon、MEU等）

解答得不对，或者有比我更多资料的兄弟欢迎指教。感谢各位支持