Complex sentence: Ort-Meyer engineered 47's escape from the asylum in order to test his performance in the outside world and ordered his associates's deaths because they wanted to use the clones for their own purposes, which Ort-Meyer was unwilling to allow.
Split into simpler sentences: Ort-Meyer engineered 47's escape from the asylum in order to test his performance in the outside world. It is implied that Ort-Meyer ordered the assassinations on his associates because they wanted to use the clones for their own purposes, which Ort-Meyer was unwilling to allow.