ORIGINAL: JudgeDredd
With regards to miniatures...I've seen on Boardgamegeek pictures showing different miniatures...some (plain grey/blue/green) and others looking camoflaged up and looking neat...almost model quality.
Where do they get them from?
There are various sources. Some of the generic colored plastic ones come with the games like Axis & Allies.
There are some standardized scales for some miniatures rules such as the Micro-Armor I collected and painted 20 odd years ago which are 1/287 scale. They are lead castings that I detail painted and came in kits of platoons. Try a net search on "micro armor" and see what you come up with.
DML (a leading plastic model company) has a line they call the "Pocket Army" that are prepainted, finished products intended for use as miniatures.
btw: One of the coolest things about miniatures was the little plastic toy periscopes we used to get views of the battlefield from the tank commanders point of view.
ASL came out with a "Deluxe" version of the game boards with oversized hexes that would accommodate miniatures. The intent was to place the ASL unit conunter under the miniature to use for game mechanic purposes while enjoying the "panoramic splendor" (their exact marketing hype verbage) of the miniatures.