In short, you need to create AI for an sport game, and the best way to do this is by following these step:
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Check these video out: A new, community-hosted Unreal Engine Wiki - Announcements - Unreal Engine Forums . Especially anything that got to do with AI.
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Apply the things you have learn and put it into place. Because what you want is worth months of programming, testing and litters of programmer’s tear, so i doubt anyone can help you more with a problem of that scale.
Note: get some programmer to help or hire some, because good AI is some of the hardest challenge of programming, and it take a certain amount of experience to even make it barely work.