I would tend to agree more with desert.snake that the #4 Fighter (the SOG Bowie grind, and the RKS-4 grind) resembles more the "Commando" blade grind vs the "Little Bear" grind.

The #4 Fighter (the SOG Bowie grind and the RKS-4) all have twin peaks on the top of the blade.

The grind line from the tip of the blade is the same (intersecting with the second peak) on all 3 knives (the "Commando" blade, the SOG Bowie, and the #4 Fighter.
Even the RKS-4 knife exhibits that grind.

The Little Bear knife has a single peak and the blade grind is between that peak and the hilt of the knife. The blade grind is not like the blade grind on the other 4 knives at all.

Tom V.