Thanks for your replies guys. I did realise that it was too big a project a few days into it. However I do have a huge time constraint initially.

I dont want to implement bullet-time or even any shaders at all. My target is to create a simple 3rd person shooting game which runs on much older systems, and looks good by just using nice models and textures.

I then found out about intense X and bought a copy. It solved a lot of my problems as it has an in built movement code, weapons code, camera code, good AI etc which were all customizable.

I do know that starting without the knowledge of coding is not the best way but I dont have that much time right now.

When I opened the bundled models provided with intense x, they were sized at exactly 5 times x scale of cbabe. So thats what I am confused about, what should be the ideal model size I should use to make the game look good and not make it slow.

Thanks for the help
Ankit