#38 - Future Cop: LAPD (Kudos to no-one for guessing this)
I guess it is a bit of an obscure game, I'll give you all that.
Anyway, yes. Future Cop: LAPD is a fantastic third person shooter with a decent campain; but the meat and bones of the game is arguably my favourite game mode of anything ever: precinct assault.
You start out in your base. Your opponent starts out in their base. You have base turrets to defend your base. You can choose to build choppers (which defend your base) or tanks (which go out and attack the enemy's base). Once you've spent all your points on either tanks or choppers, you have to explore the map and capture "neutral" turrents, which will fight for you until destroyed; or hunt down the enemy to kill them and gain 10 points.
Add in loads of other stuff such as upgradable weapons; neutral bases from which you can build tanks & choppers; dreadnauts and flying fortresses and a host of other stuff and you have honestly one of the best two player games I've ever played. Surprisingly fun to play solo, too, against the AI-controller "Sky Captain", whose difficulty on level 10 took me about 3 solid weeks of trying to beat. And it was probably the greatest achievement of my 10 year old's gaming life.
I'm really surprised the formula of this game has never really been aped since. It sold terribly, but it was full of ideas ahead of its time and I'd really like to see someone else take a crack at it.
And to give you an idea of what I'm talking about: