"Q. Can I use Forge to build my own custom Invasion experience?
But, of course, the real answer is a touch more nuanced than that. Like all things Forge related, the first step – placing objects and laying out weapons – is the easy part of the equation. Creating a fun Invasion Map Variant with the Forge also demands that you lovingly place spawns, carefully layout safe zones, and correctly fashion several objective phases. Ultimately, a proper Invasion layout requires no small amount of forethought, planning, and implementation."