Here is the usefull solution for game models.
Most fo game model after the export will be Trigon poly of course.
You have to convert it to Quad poly better performance and optimization for the games.
Here is the script good luck.
for 3dsmax 2009 to 2012.
installing = copy paste DeTrigon.mcr in /3dsmax xxx version/UI/MacroScripts/DeTrigon.mcr
open 3dsmax and go to
Customize - Customize user interface - Toolbars
at the Toolbars click category inside you will find `DeTrigon`
right side click New and at the left side drag & drop DeTrigon to that you created new
Box inside and thats it.
Note: Models Must be Editable poly , not Editable Mesh.