If I create lets say a car or walker in garrys mod can I save this to be used again after i quit the game or for use this in another source game like CSS or Half-Life 2?
You Can save objeCts that you Create in Garry's Mod using a Certain tool. Use the same tool to load them baCk up. You Can not load them into other games like CSS or Half-Life 2.
First off what tool would this be?
And since GMod and HL2 use the same format to store object data why couldn't they be used in Hammer to build a custom HL2 map?