MopAn's Jail changed a lot in the 1.2 version. The original PadMod version had extra rooms, different layout and different backyard. Almost everything was re-done in the new version nowadays.
MopAn's jail has all the weapons
MopAn's jail has 3 Jumpers, 1 Speedy, 1 Visionless, 1 PadPower, 1 Killer Ducks, 2 Floaters, 1 PadShield and 4 Health Stations.
MopAn's jail supports all gametypes (Safe for CTF)
The 2 rooms which contained the Bubble. G. and PadShield are actually still in the current version of the map, however, all light was removed from them and they are only accessible through the /noclip command. There is a sinister flashlight pointing at a key, which is probably a test of the key that opens the cell door upstairs once stepped on.