Here is a video guide with English commentary!
There are 45 intel collectibles through the entire campaign. Below are timestamps for all of them.
Timestamps:
00:35 #1 (S.S.D.D)
00:58 #2 (Team Player)
01:09 #3
01:19 #4 (Cliffhanger)
01:45 #5
02:08 #6
02:27 #7 (Takedown)
02:45 #8
03:20 #9
03:47 #10
04:20 #11 (Wolverines!)
04:40 #12
05:08 #13
05:21 #14
05:53 #15 (The Hornet's Nest)
06:06 #16
06:25 #17
06:43 #18
06:57 #19 (Exodus)
07:18 #20
07:36 #21
08:04 #22 (The Only Easy Day... Was Yesterday)
08:28 #23
08:41 #24
08:55 #25 (The Gulag)
09:09 #26
09:19 #27
09:34 #28
09:44 #29 (Of Their Own Accord)
10:06 #30
10:32 #31 (Contingency)
11:00 #32
11:24 #33
11:45 #34 (Whiskey Hotel)
11:56 #35
12:09 #36 (Loose Ends)
12:38 #37
13:12 #38
13:41 #39 (The Enemy of My Enemy)
13:55 #40
14:08 #41 (Just Like Old Times)
14:22 #42
14:33 #43
14:46 #44
15:08 #45 (Endgame)
Here is a playlist of guides for this game!
https://www.youtube.com/playlist?list=PL-HeW6XkKdUK97oYVSMU7...