Heretic is fun, and I personally think it's a great game. Unfortunetly, I wish I could say the same thing for this map (I WISH.) It just doesn't go well with Marathon, and although I liked the bay area, the indoor chambers were cramped, too much for my liking. Either way I find it hard to reccomend this.
Heretical Cyborg is VikingBoyBilly's first complete single player map. It is also customized for co-operative play. It is modeled after the first map of Heretic, E1M1 "The Docks," and is an attempt at remaking a Doom-engine map into the Marathon Infinity Engine.
It started off as an entry for Kill Them All: Volume IV, but the polygon count went up too high. Instead of letting it go to waste, here is this completed standalone map for you to play.