Postby Arioch » Mon Aug 31, 2020 8:11 pm
There's a risk of losing them if they are involved in the battle above the planet, but once the defending fleet and any defensive installations are destroyed, there's no longer anything on the planet that can pose a threat to ships in orbit; there's no risk to transports during the invasion phase. The transports don't land; the troops are ferried to the ground in some kind of shuttles.