A couple of hints.
Put vect and his squad in one of the other warrior's raiders, Or better yet put hum in a big wych squad that lets him butcher MEQ to his heart's content. (He works great in the grot squad too)
Just three reavers are virtually worthless. One casualty and they have to take a moral check. They just die too easy to be worth it. Either drop them altogether or switch to 6 man unit with blasters or heatlances.
5 wyches alone wont accomplish much. If you want to try to assault with them they need a bigger squad with a hexatrix to accomplish anything in assault or switch them to 5 in a venom with HWGs for antitank duty.
five troops is a little light for 1850 particularly when two of them are five man wych squads.
That's all I got hope this helps!
(also I don't think you can go flat out after dropping off troops.)