I'm going to be working on a new mod soon, and I'd like to include weapons that aren't in every single map. of course I will have some of my favourites, regardless of their popularity among the community. So, as simple as the title, what guns are in only a few custom maps? (Normal weapons only, not wonder weapons. Also, weapons that are from games that we have access to the xanims from, MW2, MW3, BO2)

MW3 and BO2 guns are all fairly common. I haven't seen many MW2 guns though, and they're my favourite MP guns!

Haven't seen these in many maps at all:
TAR-21
L86 LSW
M240
WA2000
PP2000
TMP
Javelin

MW3 and BO2 guns are all fairly common. I haven't seen many MW2 guns though, and they're my favourite MP guns!

Love the TMP, already ported the MW2 M4

MP412 from MW3

MP412 from MW3

I'll be sure to add that one in

mp412 rex
p99
p90
cm901
AS50
type 95
FAD

Ones I haven't seen often or at all are
BO2:
XPR-50
MK48
FAL OSW
MW3:
AK74-u
MK46
PKP Pecheneg
PM-9
XM-25
MW2:
M240
MG4
Thumper
M93 Raffica

Might just be me not noticing them in too many maps, then again I tend to not try most of the boxmaps nor lower quality (what I feel is lesser quality, my own opinion), but from what I see, here are a few:

UZI
PM63
SPECTRE
STONER
FN-FAL


Probably noticed that there aren't much MW weapons here? I've never been a fan of the series, so I have close to 0% knowledge in it. 

UZI
PM63
SPECTRE
STONER
FN-FAL

Well, most of those are already present, due to it being a gun mod for bo1 lmao

Well, most of those are already present, due to it being a gun mod for bo1 lmao

Indeed. Just mentioning it for anyone that stumble upon this topic, that I don't see most of those guns too darn often.

MW2:                 
 
MW3:

BO2: