Kinda depends on how old-school you are looking for, but Splitgate is a fun free modern take on the arena shooter genre
Militias
joined 8 months ago
Not sure why it would warp there, perhaps infill percentage is too high?
If you don't need the layer lines to be in a specific orientation I'd consider rotating the model back 90° for the reprint, hopefully that should avoid any warping.
Why not both? (Insert old meme here)
What software are you using? Do you have any experience using any CAD-program?