Well.
First to make a spawn point, Press E and look for info_player_deathmatch
then press create entity. Next pull up the entity screen again (e) and click the + button.
Were it says Key, put in "teamnumber" (without the " )
for Value put in "1"
There is a tutorial for this you know. I thought it would be easier if i just told you here. But for the rest of it here is the tut.
http://forums.planetsuper.com/index.php?topic=1888.0