weapons

[amplificated]

these offline modes (speed lap; time trial; zone; detonator) doesn't involve other ships on track, so it makes no sense to include weapons to them. detonator is a bit different, u need weapons here, otherwise u wont get a high score.
in general, only modes with opposition can be counted to this discussion. all of them have weapons..........

...except weapons off single races

And you're right - it doesn't make sense to have weapons in SL, TT, etc. - so what does it mean when the most competitive modes in the game don't have weapons in them, eh?