I love it, but you are going to have to add a little more to the BDF navy to make it possible, It doesn't seem to matter where or what you attack with the navy is too numerous to attack and have munitions get through. Another few shards would go a long way, maybe even another destroyer or an ACTUAL carrier (I hate the annex personally), but the biggest issue is after an hour everyone else seems to spawn in helicopters and you soon are overwhelmed by ifrits and revokers. If you can fix that then it should still be possible despite the navy imbalance.