you mean the two howizer you get for free with tech? (they are not great or bad but still an arty that can be good wit some commanders)
or the mortar pit witch can cover like half of some maps with no proper counter?
and i can add the best off maps in the game
the two howitzer require munition to use, that's not free. The british get a munition based off map in place of the rocket artillery for the soviet and axis