Talk:Partials/Speed system/@comment-113.23.174.44-20180404235033/@comment-27633922-20180405000943

Speed can determine routing for certain maps, plus if a whole fleet is Fast they concede an evasion bonus.

Last Winter Event a requirement for routing in E-7 North was to have a Fast+ Fleet, but that would mean exchanging firepower and other special mechanics for boilers and a turbine. The devs mostly do this to lock out some of the more shorter routes for increased difficulty.

As to why they added speeds such as Fast+, Fastest or Lightspeed, no clue.