The supply truck is what the Demolition was based off of, except this time it carries soldiers in the back instead of a nuclear warhead. It is a very weak unit with only 110 points of health, but is very fast. Unlike the APC this is not designed to get you through a lot of fire.
The Characters up front will be visible, but not the soldiers being carried in back. Both teams will have this and it will cost $500.
The Supply Truck will play a more important role in Single Player and Assualt mission.
Model was done by Sir Phoenixx, textures made by Aircraftkiller.
Read more details here.