I've put in around four or five hours into the scenario now and i just finished helping the resistance blow up the fuel depot, this caused CSAT to swarm the area and i quickly commandered an Ifrit and took off while being chased by CAS. I managed to slip away and hid inside a building but CSAT was on high alert and the CAS wouldn't leave the area, it didn't seem to know where I was, but it was circling the area. So naturally i decided to sit down and wait it out for a couple of hours. When it loaded back in the CAS left but my vision was blurry, as if I had critical damage, i figured "Cool, maybe it's because I haven't slept for 20 hours and Bohemia wanted to make it somewhat realistic" so I found my way back to my boat trying to navigate the foggy vision and crossed the sea back to a safehouse. However, when I tried to rest the prompt just went away and wouldn't come back, vision is still blurry and the wait function also broke. I tried reloading but the same issue persists. So essentially my savegame is broken.
Makes you wonder if it's called Old Man because he gets macular degeneration and sleep disorders halfway through the scenario, or maybe it's just ArmA being Arma. Anyway, It was fun while it lasted, and i'd still reccomend giving it a go.
