It could be a half truck...
*facepalm* half-track not half truck!!!
the sI looks similar to a special operations craft or a "riverine"
the ch-47d is the ch-47 chinook
stating the obvious, the ht-4 is clearly a half-truck (p.s. I really love half trucks for some strange reason)
Now, the war has now a temporary truce. All four militaries have formed their alliances, C++ with Cxx, C-- with C//. Whew, long story.
However, when one was finally destroyed, C-- captured it and built the even more powerful variant: SLGCVN. Helicopters were fairly new, so they were rarely used. However, a new power risen out, the Cxx's. Unlike the addition and subtraction forces, this was a repeated addition, and built the powerful X-288MIL. One was finally captured and built into the XG-RT-1149M by the C//. Which was repeated subtraction. The XG-RT TOTALLY dominated the battlefield.