The red zones are UNCAP!!! If you:
1 Are shooting from there while you have other flags (unless somebody is shooting you)
2 Are mortaring from there while you have other flags
3 Are mortaring into there
4 Are shooting into there
You will be awarded with a kill/kick/temp ban/ban
The yellow zones are the usual baserapers spots. If the other team does not have a flag and you are in the yellow zones and kill somebody in the red zoned it is likely you will get killed/kicked/temp banned even if you whine you were there just for a coffee.
If enemy does not have a flag and you are in the yellow zones and kill somebody in the yellow zone you are likely to be awarded the same as before.
I managed also to draw some green zones, those are suggested zones to be when you have those flags. Being there will prevent you from breaking any rules given you are not doing any of the above.
Only thanks to John_strambo do we have this great layout of rules and a map for Grand Bazaar, thanks John.