There is a chapter on Finnish army field manual how to avoid detection from infrared cameras. Page 111 forward. https://puolustusvoimat.fi/documents/1948673/22

There is a chapter on Finnish army field manual how to avoid detection from infrared cameras. Page 111 forward. https://puolustusvoimat.fi/documents/1948673/2258487/PEVIESTOS-talvikoulutusopas.pdf/cce41141-5aa8-49a7-8de6-6337a34b8cdc/PEVIESTOS-talvikoulutusopas.pdf.pdf https://puolustusvoimat.fi/documents/1948673/2258487/PEVIEST... For larger targets, like vehicles and camping sites, you can also set up dummies. E.g. empty heated tents, black trash bags and such that may lit up as targets and misguide the fire.