No, active reserves, a those that where on the table, but went back into reserves again. these reserves come in automaticly at the next turn. Examples are, fliers that move of the board, swooping hawks, mawloc.
oh i just found that shocktroops that misshape and roll a 4-6 are placed into active reserves.
good to know.
...What about a Bastion made out of Guardsmen as some form of sick sarcasm?...Or a Fortress of Redemption made out of Dark Angels - Sky Serpent