>>615757What
>>615989 said is mostly good
>three light sourcesAnd backups. And backups for the backups.
Spare batteries. MORE spare batteries. Different brand spare batteries. Test them before you go in.
>carbon monoxideunlikely in a factory with that many holes (well vented, ya know). probably overkill, but i wouldnt discard it if you happen to have one.
>filter maskTHIS. Asbestos is not fun, neither is mold.
>gps, scanneroverkill tbh, in that location at least. if you were in the middle of the desert, different story, but that place is literally 1k ft from the "main street" (whatever that means for a place called orono, maine)
personal experience.
dont bring anything that you dont want to possibly break/fall in the mud/loose/...
cheap ass camera maybe? def dont bring your $9001 DSLR...
spare batteries
spare memory chip for your camera (ask me how i know)
do mission planning.
maybe go there just to walk around it, or stop at the fence if there is one. look at the thing from a distance, you might notice something useful.
aerial recon. pic is related. combine overhead view and multiple angled views like your OP pic to figure out underbrush cover, entrances, etc. you'll need to do that for the back for yourself, rotate your view 180° and check the rear (marked with "?").
figure out ingress routes. pic related, but you might choose your own. dont go through swampy terrain unless you know what you're doing.
while in there, keep in mind where the nearest (or most convenient) is.
cont b/c character limit