Roughly 20 years ago, Victory Games released a series of Modern (at the time) Naval Games called the Fleet Series. They were a pretty good operational view of modern combat and had enough meat in them to recreate ship to ship battles (sort of). Each was set in a different part of the world. After a while, I managed to get all of them. Anyways, here is a guide to them.
A game turn is roughly 8 hours of time and it broken up into phases. In the morning you have allocate resources to strategic missions. This includes recon and interception. This allows you to strategically detect stuff, which means it stays detected until the next morning. You have to have something detected before you can attack it.
After that, a turn is broken down into three phases and you can only activate units of one type during each phase (sub, ship or air). This is where you conduct attacks. Attacks are pretty simple and have modifiers depending on circumstances and then there is a die roll. Combat can get pretty bloody. Scenarios range from the very simple to covering a whole theater. There are rules for combining maps, but each game is really meant to stand alone.
Games
How to resolve AdBlock issue? 
