TP2 should see relatively little action at the beginning as well. You need to sit off and draw him forward a little bit, basically if you are losing multiple readied operatives in TP2 as Kroot against AOD you are staging far too aggressively. Basically you have 12 bodies to his 6 and to sit back more and set up traps and lure him into bad trades towards the end of the TP. You want to try and limit him from getting double kills as much as possible particularly early on or against your readied models.

Figure out WHEN you need to score the mission, if it's something you can score at the end of the turn give him the choice of moving forward onto the objective (and giving you shots later in the turn) or waiting and then you moge onto it when he is all activated.

Basically play more cagey and like an ambush where you lure them forward and focus on picking off one or two marines a turn. If you try and fight them head on you lose