1/What is different between the Infamous CS2 Pro and the CS2 Pro?
The Infamous CS2 Pro features limited edition milling which is exclusive to Infamous. Internally they are the same marker.
2/Does the infamous CS2 Pro Come with the same things as the CS2Pro?
Yes it does, you still get the additional S-Shaped trigger, the 3 barrel inserts, and all the other normal goodies from Planet Eclipse (Manual, Spares, Tools, ECT.)
3/Can The Infamous CS2 Pro use a Mech Frame?
Yes it can! The CS2 mech frame will work on the Infamous CS2 Pro!