Your answer is and will always be a reserved yes and no.
Games like GTA are written in the fastest language that is practical to use. Written by teams of professionals that are working on only a portion of the game; full time.
You can write a similar game, and probably even a fun game in Dark Basic Pro. You will be hard pressed to make it as fast or as nice graphically as a professional game.
Whenever you get a language; like DBP; that makes programming easier, you will sacrafice some speed or power. But you can write the game so much quicker than in C or C++ assuming the same level of expertise with either language.
In Memory of My Dad.
I miss you very much.
