I got the idea of creating a payload map with the possibility to alter the path the bomb goes. BLU would be able to capture an (optional) control point that would shorten the track for the bomb. I think from a balance perspective this has a few interesting points: BLU has to decide wether it's worth to cap to get the bomb faster to the destination. RED can either prepare to defend the short track and leave the CP or defend the CP and have an easier go on the (obviously longer) default track. The idea of having a CP in a payload map is not entirely new but I haven't seen anyone mention this method yet. I'd like to hear from you guys if this is even possible and wether this has potential (I think it does!). I unfortunately have no experience in mapping and/or modelling, so I can't really tell, all I got is some years of playing TF2.