I don't know much about this area of things, but I do know if you run ollydbg and look at the code in a private match, or maybe even at the main screen, you can find all possible dvars, cvars, Zvars, lvars, whatever they are called. When I was looking, I found some interesting things in there you can unlock with your mod. One of which was show spawn points. That may or may not help you out while debugging your MOD. I think in the future, I might work on a MOD helper tool, that gives you control of a lot of the useful debugging and locked dvar features.
Don't quote me on this, but I think it is in the config file, "seta cg_showspawn" I'll have a look see here tomorrow maybe, after work.