Is the radar altimeter supposed to be inaccurate over water?
It's showing 100ft too high.
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This is the same mission over land (7ft over sea level land...)
Here you can see they all agree.
Both screenshots taken in the built-in PG case 1 mission.
I think you misunderstood the meaning of that option.
It'll use whatever is bound to the normal flight controls to control the camera when the second stick mode is not active.
Looks like the mission briefing kneeboard is causing a lua table overflow leading to a DCS hang/crash if the mission briefing is too long
2018-12-31 14:12:43.854 ERROR Lua::Config: load error C:\Users\[username]\Saved Games\DCS.openbeta\KNEEBOARD/002-missionbriefing-002.lua:table overflow.
It could be a temperature issue. The CMBT buttons enables the "combat" section of the engine limits
Though it really isn't more than a small boost over the "maximum thrust", it's there for those situations where any little will help.