i just started using the tank mod on my server..it works very well..didnt lag the server at all. it features planes that drop bombs. weapon changes. i already use my own version of the old ultra mod so i dont use the weapons mod part. the vehicles are not drivable.there bOts. but do a effective job of kickin your butt if your not payin attention. players seem to like it very much. as of now i would recommend it to any server admin. this mod is a server side mod so no download is required to play. if you want to see it in action check out my server. just follow the link to my website for the ip of my server. it runs 7 nights a week.