This is the good old Bloodpack and ZBloodpack for Doom2. The maps are the same in both mods, but in ZBloodpack are new monster, weapons, etc.
ZBloodpack V 1.02b playable only with ZDoom V2.0.96x or GZDoom - 32 new levels - over 400 new textures - new music - new sounds - new sprite (Commander...
Bloodpack V 1.03 playable with doomsday, zdoom, doom2, etc. - 32 new levels - over 400 new textures - new music - new sounds - new sprite (Commander Keen...