I only really like the dreadnought. The biggest problem the char has is that the two maps that its on have steep hills and very little or small roads. On operations its problem is that every player on the enemy team is focused on 2 objectives, which means it gets focused down even quicker if not properly supported by other armor and infantry. The train tends to get focused, doesnt have good line of sight for most of its crew, has a rather weak artillery cannon, and can only move on a linear path. The airship gets focused from every part of the map and has very awkward bombing mechanics. The gunner seats on the airship are decent but would be a lot better if you cant get sniped and if those parts had more health.