When it comes to 'consistency' of stock mobile indirect fire, katy>>>Walking Stuka in all formats of this game. Main reason being katy can bombard a single point (like VPs & fuels point) in repeated succession. While Stuka's single straight line of barrages are awfully consistent in terms of accuracy and more importantly timing.
Fires katy-like barrage at a single point but limited to 3-4 bombs per barrage, but compensates with a bit quicker reload time. From 110 sec to 50 sec.
And, the straight line barrage can be give a role of special ability, that can used for 50 muni.
This change will improve wstuka's chances of being more consistent over time and make it worth getting. Even historically, wstukas are not know to barrage all of its bombs in one go and are know for it's accuracy to land atleast 1-2 bombs at a time on its targets.