After testing my hunch I confirmed that if you play mlb_daybreak on the wrong version of Fritzbot ET then you will find that the bots will not pursue the keycard nor explosive pickup-delivers. Basically 420Blunt had to exceed the old limits in the aiscript so the last lines of instructions telling the bots to roam over and steal the keycard are essentially truncated off. To avoid this YOU MUST USE the fritzbot/qagame_mp_x86.dll file dated Jan 16 2007 contained in the Fritzbot ET special beta version file
keyword_fix.zip (unzip the dll file and place it in the fritzbot subdirectory)