Drones don't have to be deployed with their "transports" and are jet pack equipped troops. So you could argue that your piranha squadron comes in as normal, but the drones are deep striking in.
I don't know what the usefulness of that is, but you can do that; technically.
Also, you can put krootox in devilfish. Krootox take up 2 infantry slots so the only way they can hop in at the beginning of the game is if you have 10 kroot and 1 krootox. Why you would do that I don't know, but you can.
Enjoy those fun little snippets while prepare for
Doc Railgun's Blood Angels on Sat (1750 battle report to be posted on Sunday)
and The Misty Mountain doubles tournament with my CSM buddy Sarafanknight. I am playing a practice game Thursday that will be interesting, if anyone wants to see THAT battle report let me know and I will try to get it posted Thursday night. (warning there will be a lot of proxies on the other team)