some of modders for Arma serie (more particularly KJU) are working on ALL In Arma addon. it's a script allowing to port Arma 2 contents to Arma 3.
https://dev-heaven.net/issues/71942
the A3 engine is conflicting with some features of arma 2 vehicles.
for example TOW missiles on M2A3 Bradley cannot be steered when using it into arma 3.
could you improve the A3 retro-compatibility to get ride of these bugs. thanks.