Is there a site that will provide information about each Army MOS and where they get deployed?

Cailey Randolf with minor exception the Army is not really about deploying individuals. They deploy as units that are multi-functional organizations built around a doctrinal mission and a set of mission essential tasks, which are built on team and indîviudal soldier tasks. Your basic premise is faulty

Units are identified by capabilities requested froma Combatant Commander (COCOM) under the Unified Command Plan. The COCOM does a request for forces that goes through an analytical process, and if approved by the Joint Staff, is assigned to a unit somewhere in DoD (Joint Capabilities are how they are looked at) and the the Total Army (Active, Reserve, Guard). There is also a support package built to help,the unit accomplish that mission out of all War fighting functions: Intel, logistics, engineering, fires, command/control/communications etc. the Army Times publishes a world map with who might be deployed and where when it has been formally released.

Occasionally there are calls for individuals to fill critical shortages. They are filled By a personnel system driven process called the World Wide Individual Augmentation System (WIAS). They get assigned to a major command and they pick someone or someone volunteers of the appropriate MOS and skill set. These are one offs and not for public consumption. WIAS taskers are not prevelant. We are talking a couple hundred per year....which in a 480,000 person active component is not that many.

The Army Recruiting website gives an idea of what different MOSes do and the roles they serve. The mission of the Army is to fight and win the nation's wars by engaging the enemy in close combat. We don't play home games. Every game is an away game.

What is the question you are trying to answer?

I think a better question is where do certain MOSs get stationed. You could be deployed to literally anywhere if you're in a specific unit at the time it is called upon...or you could spend 10 years and never be deployed at all. When I was in the 82nd for three years our brigade was deployed twice and I got left behind both times.

If you want to see the world it is more reliable to see which MOSs are stationed in which place. Rule of thumb: if the MOS has a great duty station, it also has a crappy one you could end up in as well. For instance, there are Air Defense Artillery in Okinawa, which is a beautiful tropical paradise island. There are also ADA in the deserts of Texas as well.

Most have already stated the obvious and that is Active duty deploy units, not individuals, now in the reserves I have seen individuals pulled from parent units to fill a need in a deploying reserve unit. That is MOS dependent.