Idea First person cannon defense?

[Divine]

I thought it would be cool if players could be positioned with cannons on the city! Making all enemies ship come towards then instead of past them

 

[SlabGizor117]

I don't understand..

 

[Divine]

I don't understand..

Where the ships would be coming towards you, while you where stationed at the town with the cannons

 

[StueGryffindor]

Like you're stationed in the town, defending from an enemy barrage/invasion?