500 pts BA: Help welcome

Ok, so for a themed battle I need a 500 pt list. My opponents could be: Marines, Chaos Marines, Sisters, guard. Help is requested.

here goes:

Lemartes: 125pts
Death Company (2 free, 3 paid (105pts)
-5 man with jump packs.
Tac Squad (5man): 115
- Plasma Gun: 15
Tac Squad (5 man): 115
- Plasma Gun: 15

Total: 500

or

Lemartes: 125
Death Company: (2 free, 2 paid (70 pts)
-4 man with Jump packs

Tac Squad: (5 man) 115
- Flamer 5
- M. Bombs 5

Tac Squad: (5 man) 115
- Flamer 5
- M bombs 5

Total: 495

Attack bike: 50
- Multi Melta