I have a BIG problem. I was making a very authentic map based on a friends house (lol) for Half Life1 deathmatch. When my friend tried the map he laughed and felt like he was walking through his own house, but then he asked if i could make his garden, and the ability to go outside, wich would prevent the players from bumping into eachother all the time. Problem is, when i try to create a box around the map, hammer won't let me make it hollow. And when i try to create walls around the map, the map won't compile, and my computers cpu usage reaches 100% until i restart it. : And it's not like i want to start the map all over again, i mean.. the house is too well made, i just can't trash the project
please help