Continuity mistake: During the machine gun scene at the en Matrix has a belt fed M60 machine gun. When the fight starts, he has plenty of bullets. A few seconds later he has about 20 cm length of the bullet belt left. Scene switch - and he has more bullets. This switch between low and high ammo a few times. (01:16:15)
Continuity mistake: When the thug meets Cindy by the public phones, him and the people behind her (lady in pink and man in green) drastically change positions between the first and second shot. (00:25:50)
Other mistake: Matrix enters his house through a door on the penthouse and a dead soldier by the edge collapses. His feet and legs should be blocking the door and the entrance, but instead, from the angle inside, it swings freely. (00:13:20)
Continuity mistake: When the military guy leaves Matrix's house, the chopper's shadow points in a 12 o'clock direction. A frame later it's pointing to 3 o'clock. (00:11:25)
Audio problem: The post-production beep sound-fx coming out of Matrix's stopwatch is sometimes on and others off. (00:22:05 - 00:44:05)
Answer: They didn't know where Matrix lived. They were killing Matrix's old unit because they knew if they did General Kirby would make physical contact with Matrix to warn him. They simply followed Kirby to Matrix's home.
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