It would be possible with a lot of improvising and modding.
The final outcome however would not live up to the enormous work you would have to put in. Its a first person shooter creator. Deal with that, or use a coding language to implement your own features.
And even though "DBP is the way to go." with that being said, if this is what you want then use dark basic pro." are useless one liners, they are basically right. If you want a third person game or even functional vehicules, you are better off building your own engine from ground up.
This however will take you ages if you have no coding experience and is not for everyone.
-Wolf
Matter is energy condensed to a slow vibration, we are all one consciousness experiencing itself subjectively Theres no such thing as death,life is only a dream,and were the imagination of ourselves.