http://www.dakkadakka.com/dakkaforum/posts/list/27.page JForum - http://www.jforum.net http://www.dakkadakka.com/dakkaforum/posts/preList/427182/3864362.page http://www.dakkadakka.com/dakkaforum/posts/preList/427182/3864362.page GMT -rangers are basically a must, for passive accuracy boost
-defenders are strong ranged and pretty good in melee (though you still might want a melee heavy)
-personally, I find Trencher Commandos work well as a decent ranged element that can mix it up in melee well
-gunmages provide a lot of flexibility, and black 13th do so with style, though you probably only want one of the two

Casters:
-Siege makes everything hit harder
-Caine can murder infantry or assassinate, depending on which version of him you play, and does decent support
-Kraye makes your jacks run more flexibly and has a good ranged game
-either Haley can make your army shoot more before the enemy gets to you

...those are the obvious choices that come to mind]]> http://www.dakkadakka.com/dakkaforum/posts/preList/427182/3865914.page http://www.dakkadakka.com/dakkaforum/posts/preList/427182/3865914.page GMT http://www.dakkadakka.com/dakkaforum/posts/preList/427182/3868993.page http://www.dakkadakka.com/dakkaforum/posts/preList/427182/3868993.page GMT
If you want a focus efficient shooting jack pick up a Cyclone; it doesn't need focus at all to be effective.

In the end it will depend on your local meta and how warjack heavy it is.]]> http://www.dakkadakka.com/dakkaforum/posts/preList/427182/3869035.page http://www.dakkadakka.com/dakkaforum/posts/preList/427182/3869035.page GMT
For instance, an example of about the most I'll use: my Siege list has:
1 charger (usually gets 1 focus a turn, can get 3 if siege is well protected and has nothing to do with his)
1 defender (1-2 focus depending on what it needs, runs melee if necessary)
1 grenadier (gets extra shots from trenchers, is attached to the journeyman to alleviate focus strain: typically 2 boosted hits or 2 boosted damages, depending on the targets)

If you do the math, there really aren't that many casters that run a lot of warjacks well (most run them decently, or run 1-2 very well)

If you really want to run ranged warjacks, and a lot of them, Kraye is about the only way to do it well, but he's a finesse caster, so not a great starter]]> http://www.dakkadakka.com/dakkaforum/posts/preList/427182/3870082.page http://www.dakkadakka.com/dakkaforum/posts/preList/427182/3870082.page GMT http://www.dakkadakka.com/dakkaforum/posts/preList/427182/3870631.page http://www.dakkadakka.com/dakkaforum/posts/preList/427182/3870631.page GMT