Right now the field editor is purposely built to be "open." This way map makers can make any type of map they want and create any field gameplay/experience they want. PSP, NPPL, Rec-Ball, etc. and maybe even new map types like castle attack/defend, city, urban, etc. Pretty much there isn't a standard so you can set any "standard" you want for your own maps.

But if you want a basic guideline to make "good feeling maps" we suggest using the defaults for the field size and default for bunker sizes.

Default field size info: 1800px x 1000px equates to 180 ft x 100 ft for field sizes; basically 10 pixels per 1 ft and you can adjust from there. I use this personally as my default for 5v5 and 7v7, I've also been using 1440x720 for the 3-man fields just because "it feels right" not necessarily because it's accurate to anything.

You should be able to build any field dimensions accurately enough knowing the 10 pixels per 1 ft rule.

*The default resolution also equates to very close to 1080p rendering (1920x1080) which I like to stay close to for best gameplay performance (so it doesn't kill your FPS)... if you make a field size 5000x5000 it could be crashing the server on load, and even if it did run it you'd probably be getting very low FPS playing it. I'm also not sure what max "stable"field  size would be either, it's unknown at this point.