Covert Ops - Nuclear Dawn (PS1) walkthrough part 4

Points of reference:
00:08 - Lublin - Poland
00:52 - Using the Red Card Key
01:10 - Warsaw - Poland
03:32 - Machine Gun Custom Barrel
03:43 - Reseting the breaker
05:03 - Activating the air purifier machine
07:28 - Rendezvous with Christina and Billy
07:55 - Billy's blood type
08:40 - Blood Pack (base fluid)
09:28 - Preparing the artificial blood
10:14 - Blood Pack (prepared)
10:27 - Saving Billy
11:08 - Card Key (GR)
11:29 - Using the Green Card Key
11:47 - Bullet-Proof Vest, Infra-Red Scope
12:27 - Giving the Bullet-Proof Vest to Billy
13:07 - Plastic Explosive
13:57 - Berlin - Germany