Thanks all for your reply.
What is the size of texture I can use in level design.

And if I use normal mapping will it suport by A6? What are the other maping methods supported by A6? Like specular, opacity, bump, displace are these channels supported by A6? becaue I need to give a lot of depth for my level.

And main I want to ask you all what is the measurement unit I should keep when I model the level in 3D Studio Max?

I am not a programmer . so Where can I get some readymade scripts to design my game?

how do I export my particle effects which I made in 3D studio max. or Does the A6 provides me the same kind of particle effects that 3DS max gives me?

Do I need to convert all my polys to tris before I export to A6? if yes why?

I know this is a very big list of questions. If any one can help me in this case would be really great!

Thanks in advance