** The 7 Worlds have names corresponding to different Naval Theatres, but are mostly referred to by their number of introduction, being from left to right: W1, W2, W3, W7, W4, W5, & W6. | ** The 7 Worlds have names corresponding to different Naval Theatres, but are mostly referred to by their number of introduction, being from left to right: W1, W2, W3, W7, W4, W5, & W6. |