Wilhelm Johnen's book - true or fake?

[Sergio Luis dos Santos]

A few pages later, while he flies his Me 110, his radiooperator, "peering through his glasses at the night sky" (huh?), calls out a bomber "right ahead and level with us". It's beyond my imagination how a rear gunner in a Me 110 could spot an aircraft flying ahead of them... Or did they fly a Mosquito perhaps?

Humm... Havent´you turned you head enough to almost see what´s on your back when doing a reverse with a car? Just imagine the gunner looking around, front, sides, above and bellow searching for targets or an enemy. If the target is distant you can see it even being ahead, the exhaust flames can be seen at night from long distance.