Now I know this won't be in the game do to programming issues and whatever but Imma still dream.
I think it would be interesting if Aneska had where the alt fire made her mech charge to that point, taking the fastest route possible, dealing small damage and a push effect to those in its path and once it is on the mark does a higher amount of damage in a large area. The cool down of this alt fire would take the most time however to sort of nerf the fact the mech can move now. Her gun its self could be a more rapid fire assault rifle sort of deal sense I feel she would benefit from it sense her other guns are more slow paced.
I feel like this would be a great change to her kit because it adds mobility to her mech while still taking all the fire for the team. Again I doubt they would put this in the game but feel it would be a cool concept.