Anti-Tank Guns

I finally started reading the Dirtside rules, and noticed that there 
are no rules for towed anti-tank guns (a la German 88's).  What do 
people do?  Follow the rules for the towed Artillery?  House rules?

Also, Since there are a few (ex-) artillerymen in the list, is it 
reasonable to give towed artillery a 180 degree arc of fire?  Can you 
twist your cannons that much?

Thanks!

Alfredo
------------------------------------------------------------------------
--------
Alfredo Lorente 		  "End This." -- Delenn
Minneapolis, MN 		Lines of Communication
alfredo@bitstream.net	      Babylon 5