There are currently two different PvP modes for interacting with others. Those modes will present the players with different goals they have to complete in order to win the match. The PvE in JAO is contract-based: Each contract consists of several missions that are connected by a storyline. You can fight other players for the top spot in the rankings using a matchmaking system that pits players of equal skill level against each other.
On the management level, you build up your base by upgrading different buildings, which have certain functions (workshop, hospital etc.). You hire and dismiss mercenaries, train and equip them to improve your company.
On the tactical level, JAO provides players with the good old Jagged Alliance gameplay with a few modern tweaks. That means you get a certain amount of action points each turn to work with. The challenge is to use them as effectively as possible to achieve the objectives of the mission.
