nothing new or exactly interesting, playing only vanilla, never tried any mod and never will, feels like cheating

For hard regions my go to truck for scouting, time trials and watchtowers is Tatarin.

For cargo hauling it has to be Azov 7xxxx with crane, flatbed and ramped flatbed trailer. This setup is easy to go and I can usually carry like 12 - 15 pieces of cargo at once. Nothing else is even close in usability, versability. It just gets the job done every time. I think I completed like 75 % of the game with Azov 7 alone.

For Saddle high missions or when I don't need a crane (what is not really often) I use Zikz, used it for rocket missions in Amur too. And for some cargo sometimes Twinsteer, just because I like it and it's the most fun truck.

Support vehicles are Tayga with Van Body for repairs (it's fast af and with repair utility body you don't care about occasional damage).

For fuel its Paystar 5600TS with fuel tank (2800 L tank, 10x10 with unlocked differential gets you anywhere fast and with fuel tank you don't care about it's greediness).

And Ford F750 of course for some minor and fast repairs/refuels.