He has esophageal varices. The next time this happens, it will likely kill him. Likely sooner than later.
FYI, his alcoholism was what most likely nearly killed him with the ammo box. Never saw it myself, but problems can get dealt with internally if someone doesn't pull up their shit. A common one is in the Royal Australian Navy having a hatch "fall" onto your hands, and people always question if an accident happens whether or not it was legit or punishment.
Can't say for sure but if he was an alcoholic cunt and burden in army, there is a good chance it was decided that he was a liability and the ammo box being dropped on his head was a way of getting rid of an annoyance and lessening the work load by not always having to carry around a drunken slob.
If he refused to learn his lessons from that, then there is Buckley's fucking chance he's going to pull up now he's spewing blood with a shot liver. Seems God has dropped his own ammo box.
My first assumption was the injury he received in the military finally advanced to the point it's going to kill him so he's suing them for big bucks. I know everyone is saying alcoholism but even Rand can't be dumb enough to sue Fosters or whatever pisswater brand he's drinking himself to death with.
There are payouts coming for people who received bastardization in the ADF, particularly if it resulted in injury or PTSD. It is to shut them up before another Royal Commission rolls around. That might be what he's referring too. That also backs my theory his ammo box incident wasn't an accident.
However, him being sick with something that might kill him means he's less likely to be paid out. Reason for this is Aussie Department of Veteran Affairs are a bunch of complete cunts, and they're likely to figure if they delay and wait long enough, Rand will drop dead and they won't have to pay a cent. I also doubt given his alcoholism and temperament, he's got the fortitude to go through the process against DVA, they've driven better to suicide and heart attack with the bullshit they pull.