New Player seeking help with list

Just got into the game and split the Operation Coldfront two-player box with a friend of mine, taking the Ariadna half. I also happened to pick up some other models that got me interested in the game in the first place (Kazak Spetsnaz among others) and am looking for advice on how to get together a proper 300 point list with the models I have/am soon to acquire (got a bit ahead of myself admittedly and ordered a few more models)

What I have at present (just noting the weapons modeled with atm)
Operation Coldfront;
-3 Line Kazaks
-Veteran Kazak (AP Rifle)
-Tankhunter (AP Rifle)
-Scout (Boarding Shotgun)
-Ratnik

-Spetsnaz box (3 models)
-Veteran Kazak (AP HMG)
-Irmandinho
-Warcor
-Strelok (w/K-9)
-Scout (w/Ojotnik)

Current thoughts on a list (the Dog-Warrior has been on my to-do list ever since I first found Infinity)

Tartary Army Corps──────────────────────────────────────────────────GROUP 1 8 2 2 SPETSNAZ (CH: Ambush Camouflage) HMG / Pistol, CCW, Knife. (1.5 | 38) VETERAN KAZAK Lieutenant AP HMG / Heavy Pistol, Knife. (1 | 47) LINE KAZAK Rifle / Pistol, Knife. (0 | 9) LINE KAZAK Rifle / Pistol, Knife. (0 | 9) LINE KAZAK Rifle / Pistol, Knife. (0 | 9) LINE KAZAK (Forward Observer) Rifle / Pistol, Knife. (0 | 10) STRELOK K-9 Submachine Gun, Chain-colt, Antipersonnel Mines + 1 K-9 Antipode / Pistol, Knife. (0 | 24) K-9 ANTIPODE Trench-hammer, AP CC Weapon. (8) SCOUT (Forward Observer) Ojotnik, D-Charges, Antipersonnel Mines / Pistol, Knife. (0 | 30) IRMANDINHO Chain Rifle, D-Charges, Smoke Grenades / Pistol, AP CCW. (0 | 8) DOG-WARRIOR 2 Chain Rifles, Grenades, Smoke Grenades / AP CCW. (0 | 29)GROUP 2 2 2 1 RATNIK Heavy Rocket Launcher, Heavy Shotgun / Heavy Pistol, Trench-hammer, Knife. (2 | 44) SCOUT (Forward Observer) Ojotnik, D-Charges, Antipersonnel Mines / Pistol, Knife. (0 | 30) WARCOR (360º Visor) Flash Pulse / Stun Pistol, Knife. (0 | 3) IRMANDINHO Chain Rifle, D-Charges, Smoke Grenades / Pistol, AP CCW. (0 | 8) 4.5 SWC | 298 PointsOpen in Infinity Army