I agree 2011_6_29_18_6_13__4Pingo_SRB__ut4_train_dl1_TDM.dm_68 is not obvious, don't know why I posted it
But if you look at other 2 demos, I recommend to pay attention at:
2011_6_29_18_9_36__4Pingo_SRB__ut4_train_dl1_TDM.dm_68
-->6:20 with show normals you can see he's aiming to man in spawn, but he couldn't see him wheather he's comming from left or right side....he aims directly to him
2011_6_29_18_22_22__4Pingo_SRB__ut4_uptown_TDM.dm_68
--> 7:20 aiming and shooting into the wall of blue spawn where player can be seen with show normals, after that, following other player that is about to come out from spawn
Hope it will be enough, or I should look some more of his demos