Translation of Streitwagen

I like writting you messages although most of it is really pointless. I mean it is very good for my English studies, but except that I could not understand why you would be interested in reading it.
After our system update, lessons will be saved for 30 minutes automatically, if you want to save them permanently, you need to press the 'save lesson' button. It than works the same basically.
We had coffee, played cards and waited for our guide. We had booked the tour with Handspan, so that we were confident that he would show up. In the end the guide was a 'she' and not a 'he'.