The toy soldiers mod has been updated, and now includes all new units! A Jeep, Tank, and Helicopter can now be spawned in! Even Better News! The behaviors have been overhauled and now, if used properly, allow the npcs to actually act as a team with their corresponding colors!
IMPORTANT to make them work properly, on the npc spawn blocks, you have to set the inventory to contain the colored block of the color they are. For example, if you have a green tank and green jeep, they should have the green block in their inventories to make sure they don't attack each other, and make sure red/blue/yellow units all have their corresponding color in their inventory.