in the water i created alot of tiberium zones... cause i assume mutants dont need to breath... anyways... i made all my water vehicles unable to be affected by tiberium... so i made a invisible plate alittle below the water level... thats where the ships slide across... their physics are wheeledvehicle... and below the invisible plate is a tiberium part that subs and stuff can use... the subs physics are flying... well they can only be under water so in the room i have the subs spawn theirs a plate under them and a plate above them(so they dont fly off)... and they can fly through the water and look like subs and stuff... and if infantry get in the water then theyll slowly be hurt by the water... or in other words... tiberium!...

what do ya think?...