Need to do a cross reference in Excel - excel

Question

I am needing to check that our Master Schedule is reflecting all physical work that falls into our SOW(Statement of Work).
I have a sheet that does this fairly simply, but I want to make it a simple cut and paste from our Schedule export, and that way it reflects that it is looking at current data vs data from several months ago.
I can handle the date part, but I can't seem to get the logic in my head right for how I should reference the data to double-check compliance.
Each SOW Paragraph has a number assigned to it, and that is what each task would refer to.
Activity Type
Activity ID
CAM
WBS
OBS
% Complete
SOW
ASAP
49.3.4.2.3.2.030
Pam
77.4.1.2
C.11.1
20%
1.0
ASAP
C2_4.20.010.011
Shaun
77.3.1
C.5.4.2
15%
3.6.1.2
ASAP
C2_4.20.010.012
Shaun
77.3.1
C.5.4.2
0%
3.6.1.2
ASAP
69.HP.5.1.2.15.30
Mark
77.1.1
C.11.1
50%
3.2
ASAP
C2_6.1.5.15
Brett
77.2.1
C.3.2.1
100%
5.0
ASAP
C2_2.10.55
Susan
77.2.1
C.5.4.1
60%
6.0
ASAP
29.3.2.11.1.20
Eric
77.4.1
C.11.1
20%
1.0
ASAP
1Z.DIL.0025
Adam
77.1.1
C.1.1
10%
1.1.2
Say this image is an export from our schedule.
I need to make sure that those SOW numbers are lined up with the full SOW for just the ID numbers with a C2. Below would be the example result.
SOW Number
In Master Schedule?
1.0
No
1.1
No
1.1.1
Yes
1.1.2
No
1.1.3
No
3.0
No
3.2
No
3.3
No
3.5
No
3.6
No
3.6.1
No
3.6.1.2
Yes
4.0
No
5.0
Yes
5.1
No
5.2
No
6.0
Yes
The logic I'm trying to figure out with the formulas is:
If A# is in MS_Tab $G:$G, does the ID number start with a C2? If Yes, list "Yes" under "In MS?", else list "No"
I tried to do a VLOOKUP first and of course, that is incorrect since it only looks for the first instance of the search. Then I thought of doing a VLOOKUPpaired with an HLOOKUP, but that still falls into the same problem. I read I could do Index and Match, but I haven't been able to get the logic to work for me.
Note: I cannot change the ID's to make my life easier, this is using an excel export from our master schedule.