Sounds fun - just a suggestion though:
When UNMC did these events there would be no 'safe haven'; once the trucks reached the end objective they had to wait there for 15 minutes and still be vulnerable that entire time to all attacks (only after 15 minutes was it declared a win for the UNMC if all trucks remained there). Last time Poseidon did an event like this it was over before it even started because everyone had to stop straight away as soon as it reached the end objective. Would be funner for more sides and make it more challenging for you guys, at the very least try it out this time and see how it goes? It's much easier than you think to move 3 trucks with a huge ass convoy, I also remember in the UNMC we tried to get the minimum number of vehicles and had people a kilometre or so back as backup (90% of the UNMC online) so that it would make it far easier to stop the convoy as well and made the event last longer and more enjoyable.
@Cool
After all, I hope the purpose of the event is to make an enjoyable situation for all rather than easy propaganda for Poseidon