Here are my insignia suggestions for White Army and Imperial Russia, in case anyone wants to do non communist Russia:
Don Army:
https://en.wikipedia.org/wiki/White_Army#/media/File:Don_White_Army.svg
Flag of the Ural Government:
https://en.wikipedia.org/wiki/White_Army#/media/File:Flag_of_the_Provisional_Regional_Government_of_the_Urals.svg
Misc symbol:
https://en.wikipedia.org/wiki/White_Army#/media/File:%D0%A1%D0%97%D0%90_%D0%BD%D0%B0%D1%80%D1%83%D0%BA%D0%B0%D0%B2%D0%BD%D1%8B%D0%B9_%D0%B7%D0%BD%D0%B0%D0%BA.JPG
Volunteer army:
https://en.wikipedia.org/wiki/White_Army#/media/File:Volunteer_Army_Insignia.svg
Coat of arms of the Kolchak government:
https://en.wikipedia.org/wiki/White_movement#/media/File:Coat_of_arms_of_the_Kolchak_government_(unofficial).png
Emblem of the Armed Forces of the Russian Federation:
https://en.wikipedia.org/wiki/Army_ranks_and_insignia_of_the_Russian_Federation#/media/File:Middle_emblem_of_the_Armed_Forces_of_the_Russian_Federation_(27.01.1997-present).svg
2nd guards motor rifle division:
https://en.wikipedia.org/wiki/2nd_Guards_Motor_Rifle_Division#/media/File:Great_emblem_of_the_2nd_Guards_Motor_Rifle_Division.svg
Russian guards chest badge:
https://en.wikipedia.org/wiki/2nd_Guards_Motor_Rifle_Division#/media/File:Chest_badge_Guards_Russian_Federation.png
1st infantry division emblem:
https://upload.wikimedia.org/wikipedia/commons/3/38/Pekh_4_Koporsky.jpg
1st Neva infantry regiment:
https://en.wikipedia.org/wiki/1st_Neva_Infantry_Regiment#/media/File:Pekh_1_Nevsky.jpg
Imperial Russian badges:
https://www.pinterest.nz/pin/500251471090589413/
Russian ground forces emblem:
https://en.wikipedia.org/wiki/Russian_Ground_Forces#/media/File:Great_emblem_of_the_Russian_Ground_Forces.svg
Russian ground forces flag:
https://en.wikipedia.org/wiki/Russian_Ground_Forces#/media/File:Flag_of_the_Russian_Federation_Ground_Forces.svg
Russian logistics badge:
https://en.wikipedia.org/wiki/Russian_Ground_Forces#/media/File:Middle_emblem_of_the_Rear_of_the_Russian_Armed_Forces.svg
150th motor rifle division:
https://en.wikipedia.org/wiki/150th_Rifle_Division#/media/File:Great_emblem_of_the_150th_Motor_Rifle_Division.svg
Kornilov shock regiment emblem:
https://commons.wikimedia.org/wiki/File:Kornilovtsy_patch.png
Preobrazhensky Regiment life guard regiment:
https://en.wikipedia.org/wiki/Preobrazhensky_Regiment#/media/File:LG_Preobrazhensky.jpg
Izmajlovsky regiment badge:
https://en.wikipedia.org/wiki/Izmaylovsky_Regiment#/media/File:LG_Izmajlovsky.jpg