When spawning and tweaking.

[Psychanalysis05%]

The small area with buildings in Coast 7 is like, the perfect place to spawn stuff and tinker with the engine, there's phys props a plenty, and plenty of room for some nice ai battles, and even a couple striders at once.
It's also a great area to see how the ai react to different types of cover. There's a shack that combine with smg like to hide in, yet other units don't usually use it.
I also had barneys on the second story of the larger building there and they used (they had to be broken beforehand) windows to fire from (ar2 fire) and took cover to reload/etc.

I also like the amount of physics reactive stuff there, nice to play with. And a fun area for gravity tweaking.

Where do other people generally 'play' with the engine?

 

[Jesus Lincoln]

My favorite thing to do when im bored is go to NLO

Impulse some magnum, take the smallest items you can find, mugs, paintings, rocket ammo (yes) and fling them into the air with the gravity gun.

I cant describe the satisfaction of hitting something that small in the air

 

[Tyguy]

get a hobby....

 

[Psychanalysis05%]

I have one, I collect old consoles and rare games.
Nothing wrong with sandboxing in a pc game now, is there?