I forgot some of the things I was going to say about that expansion.
One, something I didn't agree with initially but supported one hundred percent with Road to Rome, is that new vehicles only find use on new maps. Obviously a tank with a cannon and a rocket pack is going to leave a swath of burned-out hulks in its wake when encountering a standard specimen of tank. What's more, you can get a very different experience even in the same play session every time the map switches.
Two, they incorporated something I has imagined once when I had a very high fever. In this hellscape between Heaven and Earth, I saw a beast with seven horns - but I also saw vehicles in play which could act as mobile spawn points. For older maps, obviously, a troop transport would be the perfect choice - thematically appropriate for the purpose, the only reason I eventually recoiled from this idea was that the mobile troop transports appear to be made out of wet tissue paper, and provide absolutely no protection from enemy fire or even a light rain. It would be like an attractive, World War Two era pinata full of meat that your enemies would pound on and take five tickets from you. Secret Weapons includes a cargo plane that players can spawn into, which is worth the price of admission right there. It has been the subject of several fantasies already, and I only found out about it an hour ago.
(CW)TB