For one thing, each character is connected to the other characters via a radio. At any point during a level (in story mode only), they can chime in and have a conversation (with full voice acting). Between levels, we have a system of cutscenes to allow characters to interact with each other when not in their ships. Instead of treating this like a game when writing the story, we've treated it like a story that happens to fit to a game, thus the characters interact as they would in a book or film, rather than as they would in other games of this genre.
The characters themselves are also designed to have distinct personalities and relationships with other characters. One character, for example, is the leader of a team of 3, and really cares about the other members of his team, to the extent that an entire level is based on his blind rage after one of his team is kidnapped.
That enough for you?
The characters themselves are also designed to have distinct personalities and relationships with other characters. One character, for example, is the leader of a team of 3, and really cares about the other members of his team, to the extent that an entire level is based on his blind rage after one of his team is kidnapped.
That enough for you?