Hello i am in a current bind on creating vehicles for my campaign. i am working on a Modern Era Campaign reflecting the events of World War 1. i have used a lot of source material from the Adventure path: Reign of Winter where you eventually travel to post Great War Russia on Earth. though the problem i seem to come across is the lack of Stats or instructions on how to create Tanks, Fighter Planes, Armored Cars, and Warships. the Reign of Winter has Stats for a Mark 4 Tank (or something close to it.) i have done excessive amounts of searching and i have found absolutely nothing. other than combat rules for vehicles and even then it doesn't tell me how to properly stat and build a vehicle. PLEASE HELP ME i'm going insane trying to find this information! if anyone can link me videos, books, forums/posts, websites, or willing to explain this to me it will be greatly appreciated!
Try to get a copy of Starfinder or Dragonstar. DS vehicles are tanks as far as DR, and HP. Their weapons are no joke neither.
i have looked but, i am trying to create tanks of my own design, well recreate tanks from the Great War like the St. Charmond tank, M1917 light tank, Etc. and the Vehicle combat rules for pathfinder explain that vehicles have their own base stats like dexterity, Fortitude, will, AC, and etc before enhanced by a drive NPC/Player and i cannot find the base stats. for anything its truly frustrating.
Might try posting a request in the Homebrew section for help and suggestions. Introducing "post medievel" vehicles and weapons is a long standing occurrence in fanstasy games and literature. Despite that I think the rules were typically made up for the particular encounter or adventure. The reverse is equally true as Science fiction material often does the same only introducing fantasy creatures and elements to the game.
more an Advice or Homebrew thread...
for fun I'd read the Technology Guide just to see how PF Designers envisioned advanced technology in the fantasy setting. Note that the "Technology" feat is required by fantasy setting characters as advanced technology or science is a foreign experience.
I'd agree that some d20 Modern supplements would be more practical and can be obtained inexpensively at this point. I mean you could go back to something like Spycraft or Aftermath!(old but a goody).
d20 Modern vehicles