It looks like quite an interesting read.
Essentially its a bit like a diary of events in Northern Ireland from late 1975 to early 1978.
It details units deployed over that period and significant events in more detail.
It's going to have to go on the pile for after the Falklands material, but it looks like a good reference for Northern Ireland during this period, or if you are looking to game an alternate timeline ala Winter of 79.
On the subject of the Falklands reading list, I've started "The Battle for the Falklands" by Max Hastings and Simon Jenkins. I'm finding the early chapters very interesting, but it is a little heavy going on my current sleep levels. Good detail on what happened that lead to the conflict over the islands. Still to get to the actual conflict itself at this point.