How to find out about "Secrets"?

[SSLConf_pewp3w]

So i am playing Sealion and in the first level you got some extra prestige for destroying the tomato trucks and the supply dumps.
Now in the second mission i discovered some coal ships, but i can't divert any of my troops to destroy it. And since i don't have that much time to play this game, i would like to know where i can find out about bonus objectives that are not mentioned in the briefings, since they might give extra prestige (or bonus core troops or something like that). If anyone would be able to help me, that would be great.

[Flaygor]

It looks to me as if the coal is heading up the east coast to Newcastle! Another little joke perhaps?

Destroying them didn't seem to do anything but I may have not got them all, which of course may trigger a reward or amusing comment as with the tomatoes.

[nikivdd]

Some stuff is only flavoring certain scenarios, and doesn't necessarily reward prestige (but kill points are also useful) as for example:

The tomato trucks: It happened that German pilots wrongly assumed that those trucks were carrying ammo and troops, but in reality they were just transporting tomatoes.
The coal convoy: Despite heavy aerial battles over the Channel and the Luftwaffe also attacking British shipping, the British kept sending coal transports through the channel.
There are also things like just ordinary trucks, rail transports and such.

Special prestige rewards (like in fist scenario for destroying the supply dumps) are hardly ever "given away"
The same goes for capturable units ( yes, there are capturables in Sea Lion)
And there is also information present about the Soviet Corps campaign structure somewhere.

[Kerensky]

Soviet Corps campaign structure...?

[BiteNibbleChomp]

Soviet Corps campaign structure...?

I know how I'll be spending the evening then!

- BNC