How to make a helmet

[The Boogyman]

Hi everyone...

after viewing round this forum i got to say there are really great posts...
but, i am just a noobie so here is a noobie question for you..

simply: how to make a helmet only in Zbrush...
Im trying to make a spartan helmet but i have difficulty making the eyeholes etc...

thanks in advance

PS dont know if this is the right forum...