I think it would be pretty cool if vehicles were utilized more in patrol spaces and missions. Halo had a warthog or other vehicle in nearly every level, and that was a lot of fun. However, vehicles in D2 are rarely used. I loved the pike run section in WQ and the drake in Shadowkeep, and I think it would be nice to see more of that. Maybe some new vehicles would be cool too. There was concept art of a warthog-like vehicle driving across Europa from Beyond Light, and there's all those space buggies on the Moon which would be fun to drive.