I guess there are more than one reason why I had quitted playing PSU. Regardless of the AOI upgrades, it is still lacking something..
Not sure how many of you here will agree, but PSU does lack the "pause" function. It sucks when you are doing a 30-35 minute free mission, yet unable to save game or pause midway into the battle.
Most rpg games have the "pause" function which is amazing, especially when people decide to doze off midway into the game.
Unfortunately, PSU doesn't have the function...
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