With the walk-through guide no matter what i do i can't get the burden,love and family endings.
to get the Family one, have you played Angel's "False Alarm" chapter and answered "If you want" in Goldie's "We?" chapter?
For burden and love it seems you have a problem getting Keyes to hate you. Have you tried kissing Bishop, not punching that guy in Campus, and basically being aloof to Keyes? Try replaying some of those chapter events and then replay the final ending part, as to get the tag to enable triggering Burden or Love chapter does need you to replay the final battle part if your first endings is ones with a good relationship with Keyes. Hope that helps