The Unique Perks of J.A.C.K that are not supported in Hammer are huge perks!
- J.A.C.K can go 3+ WAD Files for mapping, meaning that It won't crash...
- J.A.C.K has a sprite function, you can see what you created. If you create a sun, you'll see a sun image
- J.A.C.K offers when you create a new map to create a basic room. Which you'll do it to test objects, or even test the J.A.C.K for it
But Remember! These are what I found, If you go search, you can find many perks of J.A.C.K
Also If you want to start mapping for WANTED! You learn how to make maps from this tutorial.