Five landing crafts presenting here are for, respectively, Britain, USSR, Germany, Japan and USA. Only the German one, though, has any markings that clearly identify it as belonging to one particular nation - all the rest are generic enough to be used for other civs during WW2 era (Japanese one probably fitting for most Asian ones). British and American appear to be reskins of the same model. All five have less polys than vanilla civ transport unit (about 200-250). All obviously use transport anims.
Axis & Allies Unit Pack - Landing craft 2016-10-05
Axis & Allies Unit Pack - Landing craft