>For me this is a non-issue.
I'm not reporting a bug, so this isn't a request to fix anything. It's a suggestion for a togglable modding feature.
>How many missions are melee-units only?
In XPZ, it's all the monster hunting missions, most zombie missions, some underwater missions, some underground missions, and some other missions with mixed enemies.
>How many players camp in the craft?
Almost everyone when they have a craft with a lift available. It's pretty common when it comes to melee enemy missions. People buy crafts with lifts specifically for this reason.
>A simple flying suit has the same impact. Just fly up one tile and no chryssalid will ever touch you.
Flying armors aren't available in the early-mid game. Also, if enemies have a few ranged attackers mixed in you can't exactly fly out in the open.
>I don't feel any need to "fix" that
That's ok, can I implement it then? What would be a good solution for me to implement?