[executioneer]

shoot it in the pouch :/

The entire level is a battle against the big spider called Gonarch. Get the
items ahead of you and turn back. In the left corner, you can see a big rock.
Get behind it for cover. There's a healing pool on a floating rock accessible
from here. Shoot some rockets at the spider's pouch and it'll eventually run
away. If you run out of rockets, use any high damage rate weapon. Follow
Gonarch through the tunnel. You'll find more items inside it. Shoot more
rockets at the spider and it'll run away again. Don't follow it yet, fall into
the small hole in the left corner instead. Kill the many headcrabs and jump to
the left. Use the healing pool then get onto the other platform. Get the items
and use the alien pad to get back up. Enter the tunnel Gonarch went too to
come to the final battle place. Move slowly or you'll fall down. Shoot at the
spider a little more and it'll break the webbing. If you're good at your aim,
you can kill it now without going down. Anyway, after it's killed, get the
items and fall down in the hole it has opened. Use the healing pool and jump
into the portal.

and half-life single player rules damnthatdavid

-willie