I'd like to bring your attention to:
Team Yankee covering the conflict in Europe and Fate of a Nation, the Arab Israeli War. Developed by Battlefront (more Battalion size engagement even though gamers play at the individual vehicle level), UGOIGO. Popular, paper/scissor/stone model.
Fireteam modern, skirmish level with teams, engagements are one platoon a side, activation by poker cards and possible interruption with card hand. Units activated roll for pips. Very interesting set of rules and not too coomplex (good balance between effect and level of detail).
5Core Brigade Commander 1-3 x companies a side. Level of abstraction make decision making sufficiently relevant for a Brigade Commander level while keeping at the same time the effects at platoon level relevant.