@mercer: Khan allows bikes as troops if he takes a bike, which normal captains do for less and let you keep combat tactics.
As far as the list goes, single raider is never good but with outflanking it's slightly better, you're screwed if he stays on the inside though. Otherwise, lose all the power weapons you bought and put the points into either TL ass-can or Las/Plas on your RBs and DBs on your vindis. Also swap the meltas on the sternguard for 4/5x combi melta, cheaper for a uicide squad and get you more shots.
As far as the list goes, single raider is never good but with outflanking it's slightly better, you're screwed if he stays on the inside though. Otherwise, lose all the power weapons you bought and put the points into either TL ass-can or Las/Plas on your RBs and DBs on your vindis. Also swap the meltas on the sternguard for 4/5x combi melta, cheaper for a uicide squad and get you more shots.