M18 GMC "Hellcat"

My model has an integrated bushing in the hull, to make it turn smoothly you need to snap the bushing by trying to rotate it. You can do that using the turret, you shouldn't need a whole lot of force to break it after which it works like a charm. The hull has a lot of overhangs and needs a lot of supports.

The machine gun is also very supports heavy. on the top of the circle used to rotate the machinegun was in the way for me and I had to cut the tip off.

The turret is printed on it's angled on it's back, you need supports on the first couple of layers but the rest is ok without supports you might want to slow down for the barrel for a cleaner print.

The assembly is rather simple, you put the tracks and suspension together than glue both of them to the hull, the machinegun you force in to it's place you should push it using the ring attached. The back track needs to be glued in, locating itself. Then you put the turret on the hull.

A bit of history:

The M18 Hellcat officially known as the M18 GMC. Was for a tank destroyer role but it was also very commonly used as infantry support. This model is fitted with the M1A1C 76mm cannon with a muzzle brake mounted. The general idea behind the M18 was that by using speed and ambushes it would destroy tanks. Because speed and agility was so important it did not have a lot of armor. That made it a lot weaker, even lower caliber anti-tank munitions like the Anti-tank rifle PzB 39 could penetrate the hull. The tank was generally very effective during the war, having 2.4 kills per loss. Although that wasn't really because the tank was so great, it was more a function of a decent tank a decent gun and excellent crew.