Hello TechCo, to answer your question....yes you can. You can use the DarkAI scripts that will give your characters and allies more knowledge (hide behind cover, become your ally, etc) but its still far from perfect. Other than that it would be best to create your own script that does what you find necessary.
FPSC has its limitations and you will figure this out on your own if you decide to tinker around with FPSC. Its not the best program and it is getting pretty old now so if you find advanced physics, lighting, and code necessary then I would suggest look into another program. However FPSC is a great starting point as it is easy to learn, so If you need any help don't be afraid to ask away on the forum we are small but very helpful.
As always, Game on! -2S!K Productions