Here's a link to an excellent Civilpedia source for this unit:
http://www.geocities.com/dutcheastindies/SNLF.html
Excerpt:
The Japanese Special Naval Landing Forces were not a part of the Japanese Army. Nonetheless, these naval infantry units, despite their relatively small numbers in comparison to Army ground forces, comprised a significant augmentation of the Japanese combat capabilities on dry land. The transition in the Japanese Navy from simply designating certain ships to provide shore parties composed of regular sailors, to creating a force of full-time naval infantry, occurred after the First World War. The Japanese "Special Naval Landing Forces," as the Japanese Navy marine infantry units were officially known (also known in Japanese as Rikusentai* ) saw their first action in the "Shanghai Incident" of 1932. At first they were rather large and unwieldy formations, about 2,000 men each (hence sometimes described as "brigades"). Most of the Special Naval Landing Forces that fought in World War II proper were however created in 1940-1941, or even later, and these were more streamlined units, generally ranging anywhere from about 750 to a little over 1,500 men in strength.
Oh and can someone attach a parachute to this unit per:
The SNLF Paratroopers
Of the above, probably the most unique were the 1st and 3rd Yokosuka SNLF's, which comprised the Japanese Navy's own parachute infantry force. Apparently not all the men in each of these three outfits were provided with jump training, as a force of 750 in each SNLF were organized as combat paratroopers, the remainder as an administrative and logistic base force. The Navy paratroopers were only organized on the very eve of the war, beginning in September 1941. Their first training drop occurred only on November 16th. Note, too, how all of the SNLF's bore the name of a major Japanese naval base for administrative purposes, although in practice they were attached to the various fleet headquarters, and administered directly from there. This is perhaps another reason that the Japanese SNLF's have not been considered in the same class with the US Marine Corps, because there was no higher organization controlling all the SNLF's. The Japanese did on occasion create what they called a Combined Special Naval Landing Force, which was usually two of the conventional SNLF's lumped together under the command of a Rear-Admiral. Some of the above SNLF's remained in the China theatre or in various base areas for much or all of the war (for instance, the Shanghai SNLF, which operated from that port-- the 4th Yokosuka and 8th Sasebo SNLF's were attached to 3rd China Contingent Fleet and based on the island of Hainan, off China's southern coast, a piece of real estate intially seized by Japanese naval infantry during the war with China). However, the Special Naval Landing Forces played an important part in the initial Japanese offensive operations, particularly in the Philippines and Dutch East Indies. Furthermore, their role was usually to spearhead amphibious landings, and secure the beaches so that the larger Army contingents to follow could be put ashore without mishap.
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...Red Army infantry to replace the default infantry for Russia (as example), A6M2 Zeros replacing Japanese fighters...etc. In this forum we have a lot of interesting civ-specific units to do this work, but we need more!!
.But...I don't know the game limit for units jejeje
