I am most definitely a newbie map maker, but you may want to have the enemy ships keep peacetime ROE but of course be on an adversarial Side to the player. Keeping the peacetime ROE I believe would make it so the ships will only engage with depth charges via the scripting. If they have wartime ROE, they may take the initiative and start engaging with anything.
Also, can these boats sink the player (re: do you want these boats to be able to) or is this just for "effect"?
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