Counter Strike Source Launch Options -heapsize How To Play Counter Strike:source Singleplayer?& Also There Is A Problem When I Launch For Multiplayer!?

How to play counter strike:source singleplayer?& also there is a problem when i launch for multiplayer!? - counter strike source launch options -heapsize

Counter Strike is source.version valve 1.0.10.
Multiplayer: It will be asked to update on my server and then start it again
Single Player: I do not know how to play solo mod
When there are several options game.they home:
Find the server
CREATE SERVER
FRIENDS
ERROR
Stress Test Video
OPTIONS
EXIT
I think the choice is clear for the response to my problem with my game