As seen here, in "#46_0312_03: Clearing the Miura Peninsula" scenario allied reinforcements arrive in a water hex when strategy option 2 is selected. To my knowledge, there is no way to move these units.
Contact JTS Support and let them know what you found otherwise it won't get fixed.
[email protected]
It wouldn't hurt to include the screen shot and copy of the game file, too.
Rich at JTS Support reached out to me on this - we're investigating it, but I believe the strategy options should not be included in this particular scenario. We will post back here once resolved and will correct any errors in the next patch.
Thanks,
David