In late game Phoenix Point needs aircraft to explore the Ancient Resources… and it is “free” for only -6 diplomacy.
Against our late game overpower team, other human factions can´t have a chance to fight it, so to get an aircraft we only have to steal it for 6 diplomacy penalty, what is easily recovered by destroying a nest/lair/citadel.
Stole an aircraft and kill the guards is an act of war, penalty should be much higher… like -25 diplomacy and the risk to have a war with that faction, what is impossible to happen like the game is now.
Player never builds aircraft, waisting resources and time, when can have it for -6 diplomacy with zero risk (even in legendary it is almost impossible to lose a soldier in late game vs other human factions unless player plays real bad moves).