Well, it's in the title really. The game just crashes seconds after joining a match, regardless of the side I join, or whether I'm spectating or not. I know my specs are good enough, but I'll include them here:
Processor: AMD A6-6400K APU with Radeon(tm) HD graphics 3.9GHz
Installed RAM: 8.00GB (7.20GB usable)
System type: 64-bit Operating system x64-based processor.
OS: Windows 10
I'll also add the error files, and I'll keep experimenting throughout the night.
EDIT: It appears the issue is only with mountainside and riverside. Cliffside works though.
EDIT: It's completely random with every other map besides mountainside and riverside, which is a guaranteed crash.