So generally for a trailer we want to try and provide a decent summary of gameplay. I feel like the best way of doing this for SS13 is to show a hectic round from multiple perspectives
In terms of how we could do it, we could learn more on the cinematic side and make a rendered trailer (similar to this: https://www.youtube.com/watch?v=PD8LdxRSueA) or use game footage/replays. Eitherway I think that we should avoid using voiceovers (VO is cring) and rely on music and pacing to carry the mood.

Structure wise I think it should basically step through each department with things progressing as multiple antags/events occur with the station

We could use a satirical announcer like stanley parable but the writing and voice acting would be hard to pull off without being cring

The trailer would start with the crew arriving at the station and transition between different departments showcasing their gameplay and character.

Possibly starting with HOP -> Security -> Science -> Med -> Services -> Engineering?

Rough script idea:

Hook:
- Start with secoff attempting to fight nukies off the bomb, and dying. Pause: "Yep, that's me. I bet you're wondering how I got myself into this situation" Start from the top, with them arriving on shuttle
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- Crew arrives via shuttle, follow a character as they head to HOP and get their security card. Alarm goes off and focused character gears up and heads down the hallway.
- Various shinanegans happen in the background (clown, jani, etc.). Security arrives at science to find spiders attacking the scientists.
- Explosion happens to mask transition to focusing on a paramed dragging a wounded sec officer to medical. Sec fights spiders in the background.
- Doctor starts treating sec officer as camera starts to follow a doctor leaving medical.
- Doctor enters bar as a bunch of people sit and drink. Clown walks in and does something stupid. Camera focuses on bartender who cocks shotgun.
- Jump cut to engineers working on singluo. Follow EVA engineer as they return to the station via airlock. While walking down a hallway, wall explodes revealing nukeops in hardsuits.
- Cut to running gunfight with nukeops and sec. Nukeops planting the bomb.
- Bomb explodes and round ends