Level of features
CDL stands for Classic Deluxe.
Commercial Drivers Licence
Generally 2 prior DUIs mean a permanent revocation of a driver’s CDL.
The duration of Mean Guns is 1.73 hours.
Guns to butter i think you mean. google it.
Classic Deluxe
Mean Guns was created on 1997-11-21.
Not sure what you mean, exactly. Class A is considered the "higher" classification, yes. If you have a Class A CDL, you can operate vehicles requiring that class of licence or any class below that. You could operate a vehicle requiring a Class B CDL, for example, but a driver with a Class B CDL wouldn't be permitted to operate a combination requiring a Class A CDL.
450 and 7 respectively
HME won't be seen on a CDL - the endorsement for hazmat on a CDL is H, or X if it's in conjunction with a tanker endorsement. HME is often used as a shortened form of "hazmat (or 'hazardous materials') endorsement".
Guns to butter i think you mean. Google it.