we want make a 3rd person shooter game like GEAR OF WAR.we r 4 person.skill programming is good.tools:3dmax,zbrush,....now what is your idea?
With legal licenses of 3ds max and Zbrush you can use this:
http://udk.com/index.htmlBy the way: this is the engine of Gears of War

With good programming skills in C++ you can use C4 engine.
http://www.terathon.com/c4engine/index.phpUnity and A7 will provide some trouble in terms of indoor scene-management, if you want to use such detailed geometry like in Gears of War.