13. Liinahamari
Before the battle I upgraded some horse transports to trucks and spent all remaining prestige on overstrength.
The battle was very long due to difficult terrain. I advanced gradually in two groups, the first one (consisting best tank, 3 arties, 4 infantries and AD) along the shore directing western and northern enemy VH, and the second (consisting 2 tanks, 2 arties, recon, cavalry and all auxiliaries) going strait towards eastern VH across the mountains. The battle was rather intense due to many Russian units placed in unexpected locations around the map.
Both tanks of 2nd group got leaders on the way, which occurred to be less difficult than expected – my contingent arrived VH perimeter to fast and was surprised on the route by Russian reinforcements which appeared from nowhere, just before planned attack on enemy objective. I had to roll-back my action to save game made couple of turns before and replay with modified plan. This time I prepared defensive combo and was able to win the battle against newcomers first, before starting VH siege. It was captured several turns before BV limit.
The first group traveled slower, harassed all the time by I-16 fighters. I managed to kill two of them, at cost of auxiliary plane, but remaining four had busy time during whole scenario. After long travel and unexpectedly long siege I captured northern VH at the last moment to score BV. The main problem with enemy VH/SH are 120mm mortars which appear, usually in pairs, just when you are close to the objective. That makes infantry attacks less effective. Finally I won some reward – 150mm arty for the second time.
Result: BV (LT)
My army before the next battle: 
OpenGen 0.93.5.0 * 16 Jul 2022 * AI version: Default (0.91)
Efile version: CC17-The Finnish Lumberjack Regiment with Adlerkorps 2K 0.72
Campaign: THE FINNISH LUMBERJACK REGIMENT, * Player prestige modifier 100% * AI prestige modifier 100%
Played Scenarios:
1 Tulemajoki , #0 , Brilliant Victory +++ Proto: G.50
2 Ilomantsi , #1 , Victory
3 Koirinoja , #2 , Victory
4 Kostomuksha , #3 , Victory
5 Suvanto , #4 , Loss
6 Lieksa , #5 , Loss
7 Vuoksi , #6 , Loss
8 Juntusranta , #7 , Brilliant Victory +++ Proto: 150mm H/40
9 Petsamo , #8 , Victory
10 Algajarvi , #9 , Tactical Victory
11 Tornio , #10 , Brilliant Victory
12 Hyrynsalmi , #11 , Tactical Victory
13 Liinahamari , #12 , Brilliant Victory +++ Proto: 150mm H/40
Current scenario: Raate, VH prestige is 640 , All map prestige is: 720
Army cost: 4624 , Current prestige is 676
AI stance is Aggressive Using map: 52
if BV: +700, Kiantajarvi , cap 5500, 16 turns prestige: 870
if V : +1200, Kiantajarvi , cap 5500, 18 turns prestige: 1030
if TV: +1500, Kiantajarvi , cap 5500, 25 turns prestige: 1370
Ls: Loss , turn prestige: 1370
Infantry
* Ratsuvaki , 1CAV (ST) , 5 bars , 613 exp , 10/10 ,
Shock Tactics , 10 kill , 0 pp [+121 exp]
* Pioneeri , Kuorma-auto , SFK/1Mot (FD) , 5 bars , 634 exp , 10/10 ,
Fire Discipline , 7 kill , 0 pp [+34 exp]
* Jaakari , Kuorma-auto , 1IN/1Mot , 5 bars , 605 exp , 10/10 , 9 kill , 0 pp [+112 exp]
Jaakari , 2/1/2Inf (DF) , 5 bars , 816 exp , 10/10 ,
Devastating Fire , 15 kill , 156 pp [+90 exp]
Jaakari , 1/2/2Inf (ST) , 5 bars , 629 exp , 10/10 ,
Shock Tactics , 8 kill , 156 pp [+96 exp]
Jaakari , 2/2/2Inf , 4 bars , 473 exp , 10/10 , 2 kill , 156 pp [+80 exp]
Tank
* BT-7 , 1T/1Mot (AA) , 5 bars , 1225 exp , 10/10 ,
Aggressive Attack , 76 kill , 0 pp [+136 exp]
BT-7 , 2T/1Mot , 5 bars , 695 exp , 10/10 ,
Overwhelming Attack , 11 kill , 468 pp [+313 exp]
BT-7 , 3T/1Mot , 5 bars , 750 exp , 10/10 ,
Resilience , 25 kill , 468 pp [+271 exp]
Recon
* Kevyt Osasto , R/1Mot (DD) , 5 bars , 623 exp , 14/10 ,
Determined Defense , 11 kill , 0 pp [+57 exp]
Anti-tank
* 45mm K/40-k , Kuorma-auto , 1AT/1Mot , 3 bars , 336 exp , 10/10 , 3 kill , 0 pp [+6 exp]
45mm K/40-k , Kuorma-auto , AT/2/2Inf , 2 bars , 230 exp , 10/10 , 3 kill , 192 pp [+23 exp]
45mm K/40-k , Vaunu , AT/1/2Inf , 1 bars , 168 exp , 10/10 , 1 kill , 120 pp
Artillery
* 105mm K/34 , Kuorma-auto , 1A/1Mot (DF) , 5 bars , 1190 exp , 15/10 ,
Devastating Fire , 12 kill , 0 pp [+217 exp]
105mm K/34 , Kuorma-auto , 2A/1Mot , 5 bars , 665 exp , 15/10 , 4 kill , 864 pp [+78 exp]
105mm K/34 , Kuorma-auto , A/1/2Inf (SF) , 5 bars , 949 exp , 15/10 ,
Street Fighter , 1 kill , 864 pp [+152 exp]
105mm K/34 , Kuorma-auto , A/2/2Inf (FD) , 5 bars , 785 exp , 15/10 ,
Fire Discipline , 12 kill , 864 pp [+128 exp]
+ 105mm K/34 , T-20 , Art/Support (IT) , 2 bars , 273 exp , 12/10 ,
Infiltration Tactics , 3 kill , 0 pp [+72 exp]
+ 150mm H/40 , T-20 , , 0 bars , 0 exp , 10/10 , 0 kill , 0 pp
Air Defense
40mm ItK/36 , Kuorma-auto , F/2Inf , 3 bars , 385 exp , 12/10 , 0 kill , 316 pp [+95 exp]
Fighter
* G.50 , 1FT (BI) , 5 bars , 520 exp , 10/10 ,
Battlefield Intelligence , 7 kill , 0 pp [+73 exp]
+ G.50 , 2FT (ST) , 5 bars , 802 exp , 10/10 ,
Shock Tactics , 10 kill , 0 pp [+54 exp]
Player 1 : Suomi
Killed: INF:103 TNK:64 RCN:31 AT:25 FORT:1 ATY:30 AD:15 FTR:17 TB:2 Total: 288
Lost : INF:6 TNK:2 RCN:2 AT:1 ATY:3 FTR:7 TB:3 Total: 24
1. Tulemajoki - Brilliant Victory / Proto: G.50
2. Ilomantsi - Victory
5. Suvanto - Loss
10. Algajarvi - Tactical Victory
15. Kiantajarvi - ?
I could start counterattack towards last enemy VH on the southeast. Another several turns were needed to take it, so I missed BV by two rounds scoring regular Victory. 
After making backup savegame I tried to capture it several times with slightly modified approach, but every time I took significant losses and didn't succeed at all. Finally I decided to fight carefully to the end, but avoided desperate attack and got another Loss.
Due to limited deployment I choose two foot infantries with leaders, as well as two best arties to defend my VH area. One cavalry to escort civilians from the west, recon with best tank and motorized infantry to support 2 civilians in the central route, and finally two remaining tanks to secure last civilians going along eastern shore. With this setup I have to play this battle three times to achieve any kind of victory. 
Slava Ukraini!