>>11079146I think he's asking if they NEED to be 1/12 because there is a 1/18 scale line of WWII figures by Marauder. Covers US Army and Marines, Brits, various Germans, Russians, and Japs. They also sell basic bucks for each soldier type that you can gear up yourself with all the accessories they sell.
You won't find a 1/12 line with as much troop variety.
https://www.marauderinc.com/category-s/2231.htm?searching=Y&sort=2&cat=2231&show=30&page=1 