This is the first part of one of the greatest series in turn-based games. In Jagged Alliance just as in UFO:Enemy Unknown you get a number of points per person you choose, which you can use to move, shoot and so on. Differance here is you hire mercenaries for your hard earned cash. There are a lot of different personalities and skill levels to choose from, some of which won't be interested in joining you until later in the game. It's important to have a balanced team, 8 heavy shooters might sound as a good idea but if one of them is injured or a lock needs to be picked you won't have the right members to do a good job.
As for the story-line it's straight-forward as well as unique, so I'd suggest you just watch the intro and the information you get at the start. In short the island you're on is built up of "mini-maps" or sectors which contain the precious trees that produce the sap that you need. This sap is refined only in couple of plants, so you have to take control of as many of these as the game progresses. The general idea is to move from one sector to another, engage the guards there, and efter getting rid of them search through the buildings and bodies to get the artifacts you need. But watch out, when the enemy attacks your sectors you need to have guards of your own, which cost money and lower the cash you have for hiring mercenaries.
A great side of this game is the freedom you have of manufacturing your own guns, rifles, armors etc. which is done with the objects you find in the sectors. You can put scopes on rifles, create almost inpenetrable body armor or just mix a good old molotov cocktail together, the choice is yours.
In closing this is one of my absolute favourite oldie because of the freedom of play, solid graphics & sound, and the fun and original merc personalities. If you don't know what I'm talking about, just bring Ivan and Fidel out on a mission...
Amazingly enough, this game works WITH sound when started directly from WindowsXP so I don't recommend using DosBOX!