ooo you were so close with her...
lol
Sorscha is a great caster, but a hard to use caster that have a few tricks to use and if you dont stick to those tricks she flops on the floor like a fish.
when in doubt take her Tiered list,
IT IS the easiest way to make a win button for her.
Battle Group:
first off, love that you actually have Sylys, allot of people take ether him or the wardog (usually wardog) and he sorta completely changes how people play and at higher point games that is a good thing. but at 50pts its really a 50/50 toss up
Behemoth: an incredibly terrifying monstrosity that can scrap just about anything in 1 turn, also a focus hungry pig = NOT WHAT YOU WANT. Sorscha as only 6 focus and plays in a style that wants to use it all (that's y Sylys is so good for hear)
in all honesty you want jacks that don't always need focus to do things I.E. Berserker, Kodiac, Beast-9. With them you get to keep more focus. and for less price that Behemoth you can get Beast-9 out there, who just shines in the hands of Sorscha.
after that go with a Kodiac or 2 if you really want, they are sorta just cheaper versions of Beast-9. n then if you must the berserker
Units:
Winter Guard, Winter Guard, Winter Guard, Winter Guard, Winter Guard, Winter Guard, Winter Guard, Winter Guard, Winter Guard, Winter Guard, Winter Guard, Winter Guard, Winter Guard, Winter Guard, Winter Guard, Winter Guard, Winter
Questions? Winter Guard!!!!!!!!!!!!!
There is a reason that Sorscha uses them as death star units, She turns them into death stars!!!!
take as many as the normal guys as you can with all the stuff that you can to make them better I.E. the one officer n stander bearer, the 2
FA 3 rockets addons and Kovnik Jozef Grigorovich. lets face it they are 1/2 a piot each = Amazing for what they will do
Widowmakers scare people, rightfully so... so good, take them, just to bad we cant have more of them
lol
get mortars n field guns: they have a hard time hitting, but when you do, omfg do they hit

and considering her feat turn lets them hit on just about anything about a 4+ on
2d6, that opens up a new world of options 4 you
the doom reavers really don't get help form Sorcha, and at the same time don't really help back
Solos:
Kovnik Jozef Grigorovich: you got the right idea already, so stick with it. he wants 2-3 units to sit behind tho.
Widowmaker marks man: helps make widowmakers better for only 2 points, yes please XD
Fenris & Eiryss are amazing models in every respect, but with Sorcha you want things that help suport your units, because you should have and ass ton of units
manhunter... sorta the same thing, n its good that you thought of bringing yuri with them, its just that y support 2 solos, when you could support your 30+ units?
hear is a standard list for 50pts pSorscha:
Kommander Sorscha +5
Beast-09 11
Sylys Wyshnalyrr, the Seeker 2
Widowmakers (Leader and 3 Grunts) 4
Winter Guard Field Gun Crew (Leader and 2 Grunts) 2
Winter Guard Infantry (Leader and 9 Grunts) 6
Winter Guard Infantry Officer & Standard 2
3 Winter Guard Infantry Rocketeers 3
Winter Guard Infantry (Leader and 9 Grunts) 6
3 Winter Guard Infantry Rocketeers 3
Winter Guard Infantry (Leader and 9 Grunts) 6
Winter Guard Mortar Crew (Leader and Grunt) 3
Winter Guard Mortar Crew (Leader and Grunt) 3
Kovnik Jozef Grigorovich 2
Widowmaker Marksman 2
50pts
hope this helps