Keep in mind, this army is pure and I'd like any recomendations to be pure as well:

1xTamara Duke
1x:^^^:DI Towed Artillery
1x:^^^:Laser Battery
1x:^^:Danai Support Vehicle
1x:^^:J-37 Ordinance Transports
1x:^^:Free Legion Company

The general idea is to use Artillery to lure them in and hopefully take out a large part of their force.

-Tsetsuki

Decent Idea, but I'd be leery of using Tamara Duke without the SM1 or Carmen Hern to back her up. You are also lacking in infantry.

Duke does not really deal out all that much damage, unless you do use the pulse........... I might even just go with a the Targe or a Wasp instead.......

Need more infatry support and to do that you have to downgrade you mech.

I'd go

Uller 122
Di towed 43
J-37 28
3 miniguns (to screen the DI towed) 24
Danai 44
Either 3 Cavs 39 or two Longuis 40 or 5 more minguns (Not everyone has 21 Miniguns like I do so asking for 8 in a 300 point build is hard)

Uller is a ok mech, doesn't do lost of damage but ok. Use the 3 miniguns and J-37 to make sure no one can base your towed.

used either the Cav's/Longuis/extra miniguns to support the Danai and the Uller.

You need more infantry. I'd suggest Logninus and Cavaliers.