For a long time I have been looking for a card based game for tactical combat in the modern era and near future. I think I found what I was looking for in the excellent Combat Cards from tactical assault games. You can find them at: http://www.tacticalassaultgames.com/category/combat_cards/
Here are some pictures of my first game, but I have played almost every week for a couple of months now.
This games shows the resurgent Turkish army of 2050 fighting the truculent and rebellious Greens again. The Greens are known for their habit if driving vehicles into the nearest building to take on infantry (don't ask).