It's Desert Fox but a little bit better in my opinion. It has VS modes for 2 player, but more interestingly it has an AI opponent and actually has adaptive difficulty. The further the point gap is between you and the CPU the faster the game becomes. I believe it peaks at +20, but this game of trying to keep ahead of the CPU for the increased speed cap was actually pretty fun to see play out. Long story short that's how I ended up playing over 100 rounds of Spitfire.