It depends on the KGS system, and the FPS of it the gun.
It depends on the gun, but "both" is an acceptable answer.
No it can only use HPA because the CO2 will mess up the soleinoid and possibly damge your gun
No, It is strictly prohibited in the manual. It will cause the gun to jam up.
only if it is built to handle co2. weather or not a marker can use CO2 depends on how it is built not which firing modes it has.
There is no such thing as a "CA" tank.
If your gun is meant to run on CO2, then it will function well. If it is not, then it will jam up when the liquid gets insides until the gun completely jams up.
No, only guns that are designed for propane should use it.
no you will mess your gun up if you shoot it under water and the c02 is not cold enough
call a paintball company and they can custome make one(most companys wil but not all)
No, paintball co2 is much higher pressure.
Im not to sure but you can use CO2 in bb guns. not just paintball, you have to regulate the PSI down from the 800s though, that can be done using special CO2 mags.
No. Nothing dissolves in the process of a paintball gun firing.