Brutal Doom Redemption of Sins is a rebalanced standalone addon, consists from 2 parts: realistic (based on brutal doom gameplay) and futuristic (based on brutal doom 64 gameplay). This one is realistic addon. Current version - 6.5. Looking for real call? You found it!
Download link: http://www.moddb.com/mods/brutal-doom/addons/brutal-doom-redemption-of-sins-realistic-addon