or you can easily located the missions used in a chapter by opening the 1.xml file in the chapter folder, in this case here :
data\scenarios\chapters\german\kharkov42
the 1.xml looks like this :
<?xml version="1.0" ?>
- <base>
- <History>
<PreviousPath>s:\complete\scenarios\chapters\german\kharkov42\current.chc</PreviousPath>
<PreviousDate>31.10.2002</PreviousDate>
<PreviousTime>12:39:32</PreviousTime>
<PreviousOwner>yaroslav.efremov</PreviousOwner>
<Action>Exported as</Action>
<CurrentPath>s:\versions\current\data\scenarios\chapters\german\kharkov42\1.xml</CurrentPath>
<CurrentDate>22.01.2003</CurrentDate>
<CurrentTime>14:34:21</CurrentTime>
<CurrentOwner>elena.Sevostyanova</CurrentOwner>
</History>
- <RPG Season="0">
<KeyName />
<StatsType>Chapter</StatsType>
<HeaderText>scenarios\chapters\german\kharkov42\header</HeaderText>
<SubheaderText>scenarios\chapters\german\kharkov42\subheader</SubheaderText>
<DescriptionText>scenarios\chapters\german\kharkov42\description</DescriptionText>
<MapImage>scenarios\chapters\german\kharkov42\map</MapImage>
<MapImageRect x1="407" y1="422" x2="0.795898" y2="0.825195" />
<InterfaceMusic>scenarios\chapters\german\kharkov42\music\explore2</InterfaceMusic>
- <Missions>
- <item Difficulty="0">
<Mission>scenarios\scenariomissions\german\kharkov42\1</Mission> <PosOnMap x="188" y="258" />
<MissionBonus />
<AllBonuses />
</item>
</Missions>
- <PlaceHolders>
- <item>
<Position x="202" y="177" />
</item>
- <item>
<Position x="193" y="98" />
</item>
- <item>
<Position x="226" y="331" />
</item>
- <item>
<Position x="242" y="209" />
</item>
- <item>
<Position x="230" y="251" />
</item>
- <item>
<Position x="233" y="139" />
</item>
- <item>
<Position x="168" y="333" />
</item>
- <item>
<Position x="206" y="299" />
</item>
- <item>
<Position x="100" y="248" />
</item>
- <item>
<Position x="234" y="105" />
</item>
</PlaceHolders>
<Script>scenarios\chapters\german\kharkov42\script</Script>
<SettingName>scenarios\settings\summer_ukraine</SettingName>
<ContextName>scenarios\chapters\german\kharkov42\context</ContextName>
<PlayerSide>German</PlayerSide>
<MODName />
<MODVersion />
</RPG>
</base>
i've highlighted in red the line who tell you where is stored the mission(s), for this chapter there's one mission but you can have several missions, normally there are all stored here scenarios\scenariomissions\
Edit : random missions are random
this is why i don't think you can know what mission will be used in advance, the random missions are all stored here :
data\scenarios\descriptions