Hold on to your horses, I really encourage you to look deeper into your tech tree before issuing a patch. I may have found one or two contradictions above but since you are doing a patch, you might one to go through it yourself once again. Sorry if I appear to be nagging, but this is such a fine scenario I really want to see in turn into an all time classic. (If you think I am being a nag, please say so via PM and I'll button up)
You might want to make sure that X unit always appears before Y unit by applying cross links across tech tree branches.
Also, having to research about 5 useless techs before getting sustainable biosphere is quite irritating. Why not move some of the improvements and units around to make every tech relevant?
p.s. have you seen
http://www.civfanatics.com/civ2/reference/customtree/
You might want to make sure that X unit always appears before Y unit by applying cross links across tech tree branches.
Also, having to research about 5 useless techs before getting sustainable biosphere is quite irritating. Why not move some of the improvements and units around to make every tech relevant?
p.s. have you seen
http://www.civfanatics.com/civ2/reference/customtree/
