weve had a ex-rook on knits for the last coupla weeks, he commented that knits just never do missions. it is very rare, and they are usually rubbish.
a short list of things which make me ignore a mission:
 * 120 slots when there are 30 knits online
 * more than 1 type of buff
 * clueless fuel loadouts
 * every assault plane in the planeset, fully loaded
that basically eliminates everything apart from karayas D3A fighter sweeps 
