Welcome to the world of FPSC and to the forums.
VISTA and X10 are dead as it was already mentioned; although, Lee is still supporting so far and trying to fix whatever bugs there are in it.
Brian had started working on models a little while ago and has done a marvelous job. And he has given them for free to the community. A big thank you again, Brian.
Speaking of "giving away," I have been vacillating between selling or giving away free my RPG mod (Role Playing Game). I had sold it to 4 teachers here locally and they were very enthused. However, I am retired and really don't want to mess with the headaches of selling anything anymore. So, I gave them their money back and am planning on releasing it to the community soon. This is the first announcement but I will have an official announcement later.
However, if you are wanting more of a FP shooter game then there are other mods that will fit that bill a little better only in the fact that they have added such things as bloom. Fenix is a very popular one right now and it is also free. Project Blue is one that others like. It is for sale but I don't think it costs all that much. There are others. Some come and some go.
Of course, the additions to FPSC that makes it a better RPG game development tool, does not preclude the fact that it can be used as a shooter game. You can have it in combination with Lee's stock versions. He is upgrading the version all the time and will soon be releasing the first beta for v117.
One more thing to mention.

Be sure and get FPI EditPad to help with writing scripts. It is free and can be found on the FPSC download page.
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OliveTreeGames