What pissed me off about Command and Conquer 3 was how GDI went from mechs back to tanks. For Red Alert 3 it was the cartoony looks, the women, the super rediculous units, and how they forgeted up the lore. Command and Conquer 4 took everything that the game stood for and tried to reinvent the rts genre. Also the campaign's story and how they ended Kanes story ruined my childhood.