dd2 camping rules is simple :
CT can camp until the C4 is planted, here they have to defuse the bomb (play mission)
TS can camp only in 2 situations:
If CT rush TS ,here TS can wait them and camp , but the rush will not last whole round though , if the area is clear they continue with mission
second situation ,if the C4 is planted , TS can camp ,but here also it depends on situation, for example ;if there is 2 ts remaining ,one plant at B the other doesn't bother to help and cover the bomb and stay long in the pit, in this situation it is called a useless camp ,covering the bomb site is also his mission in this example
For the Cash ,it will be fine if it is 1000 at the start, but there is the problem of balance, especially when a team has 6 or more good awpers, it will become a boring rounds (and not all players will eco in public server believe,me), so the solution imho is to allow admins to give cash to the unbalanced team, if this team keep loosing
there is many good suggestions in this topic, will do a meeting about this,in TS3