In the free fire, the training mode is only for a practice where you can practise to aim and make your aim more on the head so that you improve gameplay and get more kills in Classic and Rank mode. Whatever do in training mode does not reflect to your stats.
Hayato is one of the good characters in Free Fire, When you are in hayato character you get some missions, by completing those missions you get Hayato awaikning.
But these missions can not be completed in training mode. because whatever you do in training mode is not counted to your stats.