No I haven't, how would I do that?

Just gotten into modding this game, and have the mod tools

My goal for now is to make the republic rep_inf_ep3_sniper_felucia into rep_inf_ep3_sniper
I've gotten it to work easily for my own custom map, however I've had no luck with vanilla maps.

Note: this is not my end goal, just a quick way to test how to do this so I edit a lot more with the maps.

I've added kas2c_con.lua into Data_(my map)/Common/scripts/KAS
with the changes being:

ReadDataFile("SIDE\\rep.lvl",
                                 "rep_inf_ep3_rifleman",
                                 "rep_inf_ep3_rocketeer",
                                "rep_inf_ep3_sniper",
                                "rep_inf_ep3_engineer",
                                "rep_inf_ep3_jettrooper",
                                "rep_inf_ep3_officer",
                                "rep_hero_yoda",
                                "rep_hover_fightertank",
                                "rep_fly_cat_dome",
                                "rep_hover_barcspeeder")
and

    SetupTeams{

        rep={
            team = REP,
            units = 29,
            reinforcements = 150,
            soldier = {"rep_inf_ep3_rifleman",10, 25},
            assault = {"rep_inf_ep3_rocketeer",1, 4},
            engineer = {"rep_inf_ep3_engineer",1, 4},
            sniper  = {"rep_inf_ep3_sniper",1, 4},
            officer = {"rep_inf_ep3_officer",1, 4},
            special = {"rep_inf_ep3_jettrooper",1, 4},

This works on my own map but not on vanilla maps, so there must be another thing I need to change.
I also edited the mission.req in Data_(my map)/Common, adding:

REQN
    {
        "lvl"
        "SKAg_con"
        "SKAc_con"
   "kas2c_con"
    }

I'm still not getting any luck, could anyone point out what I'm missing?