Alias is dead on with the A-Bikes, keep them in squads of 1-2 they work best. I run single MM A-Bikes to prevent Last Man Standing test. The LST is nice but not worth the points, you can replace it with a squad of HB A-Bikes, not as killy but more durable IMHO, additionally you save 10pts in the process.
Ditch the flamer in the Tac squads or upgrade it to a differant weapon. They just don't have the maneuverability to make it useful. You could buy these guys a Rhino or just upgrade them to another Regular Assault squad. Its pricey however you might want to get yourself a PF for one of these squads. PF is like insurance, expensive but some day you may need it to get you out of a jam.
BA are hard to run at 1000 pts, but it looks like you have a pretty solid list. Good Luck
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