In Beast Wars, they didn't have a dedicated "medic guy" the way they did in the original Transformers with Ratchet or First Aid - they had what was called the CR Chamber, which repaired the bots. The thing was, the show kept fairly accurate to character scale - so when new toys came out that were large, I started wondering... Just how does Optimal Optimus get in there?! Optimus Primal was one of the biggest Maximals to begin with and now he's literally twice as tall AND wide!
Depth Charge was easily one of my favorite characters on the show - I still kinda wish I had his toy back (c'mon, Hasbro! Give me a new figure!) The revenge-obsessed brooding dark bounty hunter was such a fun addition to a bunch of 'bots who didn't really have something like that yet. And what a fantastic design! He's like... Robot Batman or something. So cool! Plus I am a bit of a mark for aquatic animal Transformers like the Seacons or the Sharkticons (I don't know why. I can't swim and I hate being wet.)