Surveys in the Trieste area of NE Italy have produced traces of what may be the oldest Roman military fortification yet found, possibly associated with a Roman campaign against the Histri in 178 BC. See:
http://www.ibtimes.co.uk/italy-roman-military-fort-trieste-dating-178bc-oldest-ever-discovered-1492168
http://www.pnas.org/content/early/2015/03/11/1419175112
OK interesting.
I have often wondered if the famous Roman forts extended back to the Camillan period.
That said, the article linked to credits Julius Caesar with exploits in 177BC so not sure how far the rest of it can be trusted ;)
Roman Calendar reform by Caesar did some interesting things with making one year longer, maybe he made the preceeding 150 very much shorter
The camp should be for a two-legion two-alae consular army. One wonders about the two additional small forts: might these be for Gallic auxiliaries who did not feature high enough on the trust quotient to be part of the main camp?