I'm GMing a rather combat heavy campaign where the acolytes started out as a group of guardsmen. Now we have passed 14k xp and it's time to go Ascension. Unfortunately Ascension has almost nothing to upgrade the combat abilities of our group, once the major traits are taken. So I am seriously considering using the squad combat system from Deathwatch, including cohesion, squad mode abilities etc. My intention is twofold. First to give the players a feeling of developement with their fighting abilities. Second to give them new tools thus presenting them with further meaningful choice and thus new challenges. For example the micromanagement of Cohesion is a new factor to fights.
My players are pretty competent tactical gamers that like to use a system to its full extent, so they will min/max as much as possible with available gear and rules. I do understand that this change will make them more powerful in combat than any regular ascension character could possibly be, but I have no lack of imagination when it comes to creating opposition or simply stealing it from the DW book.
Have anyone tried this, or at least put some serious theorycrafting into it? Or do you have any spontaneous thoughts about how it would work, rules that would risk conflicting or other strange effects? Thoughts around how this matches up with story and background elements are also appreciated, since we are very fond of our story and RP moments.
Input of any kind is very appreciated. It would be nice if someone already invented the wheel on this one :-)