Here are all of the name changes:

WEAPONS:

Sturmgewehr 1-5 ---> Volkssturmgewehr MP508

M1907 SF ---> Winchester Model 1907

StG 44 ---> Sturmgewehr 44

Gewehr 1-5 ---> Volkssturmgewehr 1-5

Karabin 1938M ---> Kbsp wz. 1938M

MP28 ---> Haenel-Schmeisser MP28

EMP ---> Erma EMP 34/35

MP34 ---> Steyr-Solothyrn MP34

M1928A1 ---> Thompson M1928A1

Commando Carbine ---> De Lisle Carbine

MAB 38 ---> Berreta Model 38

Selbstader 1916 ---> Mauser Selbstlader 1916

Selbstader 1906 ---> Luger-Gewehr 1906

AG M/42 ---> Automatgevär M/42

STEN ---> Sten Mk II

Welgun ---> BSA Welgun

MP40 ---> Maschinenpistole 40

M28 Com Trombocino ---> Carcano M91 TS Carbine

Bren Gun ---> Bren Mk I

Chauchat ---> Chauchat Mle 1915

MG-34 ---> Maschinengewehr 34

S2-200 ---> Solothurn S2-200/31.M

MG-42 ---> Maschinengewehr 42

Krag-Jørgensen ---> Krag-Jørgensen M1894

Boys AT Rifle ---> Boys Mk I AT Rifle

Kar98K ---> Karabiner 98K

Welrod ---> Welrod Mk I

Jungle Carbine ---> Lee-Enfield No.5 Mk I

Type 2A ---> Nambu Type 1

KE7 ---> SIG KE7

Model 37 ---> Ithica Model 37

M1919A6 ---> Browning M1919A6

LS/26 ---> Lahti-Saloranta M/26

MG 1922 ---> Darne M1922

M1897 ---> Winchester Model 1897

VGO ---> Vickers K MG

M30 Drilling ---> M30 Luftwaffe Drilling

12g Automatic---> Browning Auto 5

Sjögren Shotgun ---> Sjögren Inertia

Model 8 ---> Remington Model 8

Gewehr M.95/30 ---> Mannlicher M1895/30

RSC ---> RSC Mle 1917

P08 Carbine ---> Luger Lp08 Artillerie 

Trench Carbine ---> Mauser M1917 Trench Carbine

M3 Infrared ---> M3 Infrared Carbine

K31/43 ---> W+F Berm K31/43

P38 Pistol ---> Walter P38

P08 Pistol ---> Luger P08

Repetierpistole M1912 ---> Steyr Hahn M1912

M1911 ---> Colt M1911A1

Mark VI Revolver ---> Webley Mark VI Revolver

Liberator ---> FP-45 Liberator

Type 94 ---> Nambu Type 94

Model 27 ---> Smith and Wesson Model 27

PPK ---> Walter PPK

Ruby ---> Gabilondo Ruby

FG-42 ---> FG-42 Type 2


GADGETS:

AT Mine ---> Tellermine 42

Frag Grenade Rifle ---> SMLE Frag Grenade Rifle

Lunge Mine ---> Shitotsubakurai Lunge Mine

Pistol Flamethrower ---> Flammenwerfer 46

Smoke Grenade Rifle ---> SMLE Smoke Grenade Rifle

AT Grenade Pistol ---> Sturmpistole

AP Mine ---> Schraphnellmine 35

Shaped-Charge ---> Hafthohlladung Grenade

Spotting Scope ---> M4 Telescope

Flare Gun ---> Leuchtpistole 34

Panzerfaust ---> Panzerfaust 60

Fliegerfaust ---> Fliegerfaust B

PIAT ---> PIAT Mk I


THROWABLES:

Frag Grenade ---> Fragmentation Grenade

Incendiary Grenade ---> No. 76 Incendiary Grenade 

Anti-Tank Grenade ---> M24 Geballte Ladung

Demolition Grenade ---> No. 75 Hawkins Grenade

Smoke Grenade ---> M18 Smoke Grenade

Impact Grenade ---> High Explosive Grenade

Sticky Grenade ---> No. 74 Mk I Sticky Bomb

-Mod Inspiration and Idea From imperialFzorn686-