Now I think there is only one more area which seems/should be accessible but I can't find a way. It the building near the central structure with the water. I tried shooting at all the wood thinking something will braek and then I can climb up, didn't work. No way I can jump onto the roof from anywhere else either.
OMG, Waff, you have a sick mind
I found a way and it involves aiming for a swim. You let a guy try something noone with normal intelligence would ever do
and he has about 2 seconds durign which he can contemplate the results of his action (probably suicide, it was my last resort after all).
Anway, I'm glad you didn't give me the answer, looking for it was fun after all.
BTW I must suck at this game, my daughter just played it on Medium and killed the Warlord at her first try (I can still learn a thing or 2 about tactics form her).