Unless I missed something where is your space blanket and or H.D. garbage bag? Oop's I just found the emer. blanket.
35 years ago when you went to survival school they supplied everything, I bet things have changed.
Ask your rigger for a rollup canteen out of a current survival vest, they are much better than plastic bags.
Consider dumping the Nato matches and replacing them with REI brand windproof matches. They are packed with two extra striker strips. Add a mini-BIC. A Photon light is a great idea.
Purchase real tinder tabs, Colagans has some decent ones and you can get them from REI or about any peg board display in the camping section of any big box store.
Possibily add a Sm. SAK ( executive ) you get a sm. sharp blade,
sissors, & tweezers. Not sure what you would use the other SAK items for but this model is at least as good as a scapel blade.
You can purchase anaseptic pads rather than alcohol only pads.
Swivels in your fish kit.
Asst. safety pins, at least 2 lg.& 6-8 small.
Small pc. of a hack saw blade. Again your rigger could help.
At one time a screw in saw blade was made for a pen flare launcher, the launcher was the handle.
A couple pks of Stay Alert gum if you have room, it works.
Asprin or Ty#3 in a blister pk 2-4 ea.
Have fun.