Could one of you’s please inform me as to the proper venting proceedure for this diagram.
The first picture is the current setup
IN the plumbing2 pic is it the way I have it drawn in red or in black?
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Not entirely sure I understand the picture, but I want to say it's the red.
With just the black you have not completed the vent back to the stack, and although it's sort of looped up and around it amounts to wet venting everything, and won't fly--don't come all the way back down like that. Wet venting is when a pipe that serves as a vent also serves as a drain.
In the red you may not need the pipe labelled '2" stack'--depends on whether or not your jurisdiction allows wet venting the toilet, on the size of the pipe venting the urinal, and on the distance from the toilet flange to the vent above the urinal. Best detail would be to move the '2" vent' just upstream of the toilet.
If you buy the CodeCheck plumbing book there's a chart showing required vent sizes based on fixture load, and the max distances from traps to vents. Need to know that as you lay out DWV.