Cain
----

If you have VERY HIGH trust with all characters Cain will return in 6-2, he'll
then take the blow to save Faye, unlike human characters though Cain can
survive it, this means he'll be present to fight alongside you in the last two
battles of the game.

If your trust levels are not high enough he simply won't show up at the end,
the player is left to presume he didn't escape Amada.


Big Bo
------

If you have VERY HIGH trust with Bo by 6-2 then in the cutscene before the
penultimate battle where he has a gun to Dan's head he'll lower it and the
*Comrades in Arms* trophy will unlock. What happens next is dependant on
whether you fulfilled the requirement for Cain to come back, see below
sub-section.

If you have a HIGH or lower trust level with Bo he won't lower his gun and he
and Dan will fight before Bo jumps in one of the Cuirass-1s, you then have to
fight him, after the final boss Bo makes up with Dan before he dies.


Cain and Bo
-----------

These are the combinations of the above and how they affect each other:

You didn't fulfil the requirement for Cain to come back or Bo to be loyal:
Cain won't show up, you'll have to fight Bo, Rachael will die protecting Faye.

You fulfilled the requirement for Cain to come back but not for Bo to be loyal:
Cain will come back and save Faye, you'll have to fight Bo.

You didn't fulfil the requirement for Cain to come back but did for Bo to be
loyal:
Cain won't show up, Bo will die protecting Faye.

You fulfilled the requirement for Cain to come back and Bo to be loyal:
Cain will come back and save Faye, the whole Rust Crew (Bo, Cain, Charlie,
Faye and Rachael) will fight alongside you in the final battles.


No matter how you treat Shindo and Kurosawa Shindo their outcomes will always
be the same.

Easy Method to View All Endings Yourself
----------------------------------------

It's possible to view all the variations on the ending with just a single
playthrough, this requires getting VERY HIGH trust with the whole team. If
you're having trouble maxing trust throughout the game even with the farming
locations in the walkthrough here's an easy breakdown of who to take and when
(mix and match whoever you like, this is just a basic guideline to give an
idea):

1-1 to 2-2
Take Charlie and Faye (don't take Bo and Faye together, what gains Bo's trust
will sometimes lose Faye's).

2-3
Acquire the Trust nanomachine and keep it equipped for as long as you need to
throughout the game (see stage walkthrough for more info).

2-4
Take Charlie and Faye again. Farm at the elevator spot before the room with the
jet skis (see stage walkthrough for more info).

2-5
Take Charlie and Faye as later in the stage you'll be forced to switch to the
two you didn't take, Bo and Rachael. Farm at the ramp where the Simians keep
spawning when you're in the elevator room (see stage walkthrough for more
info).

3-2
Take Cain and whoever you have the least trust with. Farm in the beginning room
of the stage using the mounted machine gun on top of the APC (see stage
walkthrough for more info).

3-3 to 5-2
Take whoever you have the least trust with, bear in mind Cain and Faye will
leave at 5-2.

5-3
You'll easily get Shindo and Kurosawa's trust to VERY HIGH in 5-3, just hang
back before the doors they both open and in the last room to farm (see stage
walkthrough for more info).

5-4 to 6-1
You have no choice in your team in these stages, Bo, Charlie and Rachael will
be present in case you're still somehow below VERY HIGH with them.

See the walkthrough for dialog answers to all the non-missable dialog choices.
Depending on how much you farm it's very easy to max everyone's trust, let
alone get it to VERY HIGH, so don't worry about it too much.

Once at 6-2 with VERY HIGH trust for everyone you should get the most positive
ending, after you've beaten the game load up your 6-2 save, pause the game and
choose 'load chapter' to 6-2, save the game in a new slot as prompted, you'll
be doing this for each of the variations of the ending you want to view. From
here use friendly fire to take Charlie or Rachael down to HIGH or lower trust
if you want an ending without Cain and friendly fire Bo down a level of trust
to get an ending where he's disloyal, mix and match those variables to get the
desired endings (see above sub-sections for more info).