All you need is domination and frontlines back with unlimited time mode. Then focus on conquest, you literally dont need todo anything more to domination and frontlines apart from add new maps. This is how you will turn around your mess game into something fun and simplified.
At the moment all you are doing is noticing less players since the removal of these modes and trying to replace it with other infrantry modes, which nobody is really interested in.
you are making something that was good into a mess. Many will agree with me on this matter, and AP mines were fine and those moaned about it was because they were not looking where they were walking/running.
RSP is not the answer! management and communication is the answer here, which you clearly lack.
by now you could have had conquest running good, and new weapons.
but you had to literally shoot yourselves in the foot by removing core game modes, then adding these stupud charter game mode rotations.