===MANUAL FILE CREATION PROCESS===

You'll need ffmpeg (https://ffmpeg.org/download.html). 
1) Unpack ffmpeg.exe from the downloaded archive to <path-to-game>\video\
2) Create a new blank file and name it run.cmd
3) Insert this code to this file:

ECHO OFF
mkdir BACKUP
MOVE /Y ffmpeg.exe BACKUP\ffmpeg.exe
MOVE /Y CS_Cem_06.mp4 BACKUP\CS_Cem_06.mp4
MOVE /Y CS_Cem_07.mp4 BACKUP\CS_Cem_07.mp4
MOVE /Y CS_EXT_01.mp4 BACKUP\CS_EXT_01.mp4
MOVE /Y CS_FH1_01a.mp4 BACKUP\CS_FH1_01a.mp4
MOVE /Y CS_FH1_02.mp4 BACKUP\CS_FH1_02.mp4
MOVE /Y CS_FH4_01.mp4 BACKUP\CS_FH4_01.mp4
MOVE /Y CS_H1_06.mp4 BACKUP\CS_H1_06.mp4
MOVE /Y CS_H1_07.mp4 BACKUP\CS_H1_07.mp4
MOVE /Y CS_H2_01.mp4 BACKUP\CS_H2_01.mp4
MOVE /Y CS_H2_02.mp4 BACKUP\CS_H2_02.mp4
MOVE /Y CS_H2_03.mp4 BACKUP\CS_H2_03.mp4
MOVE /Y CS_LI_01.mp4 BACKUP\CS_LI_01.mp4
MOVE /Y CS_LI_02.mp4 BACKUP\CS_LI_02.mp4
MOVE /Y CS_LIB_01.mp4 BACKUP\CS_LIB_01.mp4
MOVE /Y CS_LIB_04.mp4 BACKUP\CS_LIB_04.mp4
MOVE /Y CS_LIB_05.mp4 BACKUP\CS_LIB_05.mp4
MOVE /Y CS_MUS_01.mp4 BACKUP\CS_MUS_01.mp4
MOVE /Y CS_MUS_02.mp4 BACKUP\CS_MUS_02.mp4
MOVE /Y CS_MUS_03.mp4 BACKUP\CS_MUS_03.mp4
MOVE /Y CS_MUS_03a.mp4 BACKUP\CS_MUS_03a.mp4
MOVE /Y CS_MUS_03b.mp4 BACKUP\CS_MUS_03b.mp4
MOVE /Y CS_TS_05.mp4 BACKUP\CS_TS_05.mp4
MOVE /Y CS_TS_07.mp4 BACKUP\CS_TS_07.mp4
MOVE /Y CS_TS_08.mp4 BACKUP\CS_TS_08.mp4
MOVE /Y FH02_scene.mp4 BACKUP\FH02_scene.mp4
MOVE /Y FH03_scene.mp4 BACKUP\FH03_scene.mp4
MOVE /Y FH04_scene.mp4 BACKUP\FH04_scene.mp4
MOVE /Y FH05_scene.mp4 BACKUP\FH05_scene.mp4
MOVE /Y gb01.mp4 BACKUP\gb01.mp4
MOVE /Y gb02.mp4 BACKUP\gb02.mp4
MOVE /Y gb03.mp4 BACKUP\gb03.mp4
MOVE /Y gb04.mp4 BACKUP\gb04.mp4
MOVE /Y gb05.mp4 BACKUP\gb05.mp4
MOVE /Y gb06.mp4 BACKUP\gb06.mp4
MOVE /Y gb08.mp4 BACKUP\gb08.mp4
MOVE /Y gb09.mp4 BACKUP\gb09.mp4
MOVE /Y gb10.mp4 BACKUP\gb10.mp4
MOVE /Y gb11.mp4 BACKUP\gb11.mp4
MOVE /Y gb12.mp4 BACKUP\gb12.mp4
MOVE /Y logo.mp4 BACKUP\logo.mp4

cd backup

ffmpeg.exe -i CS_Cem_06.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_Cem_06.mp4"
ffmpeg.exe -i CS_Cem_07.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_Cem_07.mp4"
ffmpeg.exe -i CS_EXT_01.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_EXT_01.mp4"
ffmpeg.exe -i CS_FH1_01a.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_FH1_01a.mp4"
ffmpeg.exe -i CS_FH1_02.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_FH1_02.mp4"
ffmpeg.exe -i CS_FH4_01.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_FH4_01.mp4"
ffmpeg.exe -i CS_H1_06.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_H1_06.mp4"
ffmpeg.exe -i CS_H1_07.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_H1_07.mp4"
ffmpeg.exe -i CS_H2_01.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_H2_01.mp4"
ffmpeg.exe -i CS_H2_02.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_H2_02.mp4"
ffmpeg.exe -i CS_H2_03.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_H2_03.mp4"
ffmpeg.exe -i CS_LI_01.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_LI_01.mp4"
ffmpeg.exe -i CS_LI_02.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_LI_02.mp4"
ffmpeg.exe -i CS_LIB_01.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_LIB_01.mp4"
ffmpeg.exe -i CS_LIB_04.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_LIB_04.mp4"
ffmpeg.exe -i CS_LIB_05.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_LIB_05.mp4"
ffmpeg.exe -i CS_MUS_01.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_MUS_01.mp4"
ffmpeg.exe -i CS_MUS_02.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_MUS_02.mp4"
ffmpeg.exe -i CS_MUS_03.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_MUS_03.mp4"
ffmpeg.exe -i CS_MUS_03a.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_MUS_03a.mp4"
ffmpeg.exe -i CS_MUS_03b.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_MUS_03b.mp4"
ffmpeg.exe -i CS_TS_05.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_TS_05.mp4"
ffmpeg.exe -i CS_TS_07.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_TS_07.mp4"
ffmpeg.exe -i CS_TS_08.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\CS_TS_08.mp4"
ffmpeg.exe -i FH02_scene.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\FH02_scene.mp4"
ffmpeg.exe -i FH03_scene.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\FH03_scene.mp4"
ffmpeg.exe -i FH04_scene.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\FH04_scene.mp4"
ffmpeg.exe -i FH05_scene.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\FH05_scene.mp4"
ffmpeg.exe -i gb01.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\gb01.mp4"
ffmpeg.exe -i gb02.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\gb02.mp4"
ffmpeg.exe -i gb03.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\gb03.mp4"
ffmpeg.exe -i gb04.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\gb04.mp4"
ffmpeg.exe -i gb05.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\gb05.mp4"
ffmpeg.exe -i gb06.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\gb06.mp4"
ffmpeg.exe -i gb08.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\gb08.mp4"
ffmpeg.exe -i gb09.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\gb09.mp4"
ffmpeg.exe -i gb10.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\gb10.mp4"
ffmpeg.exe -i gb11.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\gb11.mp4"
ffmpeg.exe -i gb12.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\gb12.mp4"
ffmpeg.exe -i logo.mp4 -vf scale=-1:1080 -c:v libx264 -preset slower -profile main -level 4.1 -crf 19 -c:a copy "..\logo.mp4"

ECHO "Reencoding finished."
pause

4) Run run.cmd. It will take several hours depending on your computer and will re-encode cinematics.
5) Delete ffmpeg.exe and run.cmd files.

===NOTES===
-Backed-up, original files will be stored in BACKUP folder. You could delete it afterwards saving 12G of space if game will perform normally.
-If you would want to speed up encode by lowering quality, you can change -preset slower to -preset slow or -preset medium or even -preset fast