If you transplant either of these arcade machines into your own mod, take note of the following:

Unless you x-scale and x-offset the camera texture in the "HUD room", you will get horizontal squishing
on everything except the HUD elements in your arcade machine.

How to figure out wall texture x-offset
Choose an x-scale:
Square pixels      = 0.6
Rectangular pixels = 0.7 or 0.8 (0.8 is a bit extreme)

Then use this formula:
x-offset = -200 - (x-scale * 100)

or, if you change the size of the camtexture definitions in ANIMDEFS from 320x200:
x-offset = -height - (x-scale * (height / 2))
(height is the height of the camtexture in ANIMDEFS)

Just apply these values to the wall (the one with the DARCCAM2 or WOLFCAM2 texture) in GZDoom Builder.

The Wolfenstein Arcade machine uses a smaller "HUD room" than the Doom Arcade machine, therefore its
camtexture x-scale and y-scale are multiplied by 2.5 in order for it to match up.