Automatics:
(lv.1) Tommy Gun:
(lv.2) MP38: Florida - Granados Compound - second floor
(lv.3) Modified AK-47: Cuba - Battaglia Masonry - there is a room and as you enter it turn left and you will see leader tha leads you underground and just follow the tunnel (thanks to Kazmir)

Magnums:
(lv.1) .357 Magnum:
(lv2) .44 Magnum Force: New York - Carmine Rosatos Compound - in hallway second floor
(lv.3) .501 Magnum Enforcer: Cuba - Battaglia Quarry Chop Shop - if you look at the map there is a lighthouse go there and its easy to spot

Pistols:
(lv.1) Pistol:
(lv.2) Silenced Pistol: Folrida - Ryan Roth mission - in a mission that he sends you to rescue one of his soldiers there is no way to miss it
(lv.3) Delta M1911 (silenced): Florida - Manganos Compound - second floor

Rifles:
(lv.1) Sniper Rifle:
(lv.2) Spitzer Centerfire: Florida - Emilios packing company - is on the roof top, youll need a engineer to cut the fence
(lv.3) Vintovka SR-98: Cuba - Almeida Compound - is in the second floor on a desk

Shotguns:
(lv.1) Shotgun:
(lv.2) Sawed-off: New York - Corleones Compound - right side of the main gate behind some bushes, youll need an arsonist to burn it
(lv.3) Schofield Semi-auto: Florida - Global Storage Chop Shop - on the right side of this little island inside of the small warehouse

lv1的我就不翻譯了
lv2：
沖鋒槍mp38，在佛羅里達(dá)Granados總部的二樓；
.44大口徑手槍在紐約Carmine Rosato總部上二樓的路上；
消音手槍在Ryan Roth任務(wù)里得到，具體位置我打的時候在一樓屋頂?shù)囊粋�箱子上；
Spitzer Centerfire步槍在佛羅里達(dá)Emilios packing company（地圖上可以找到這個名字）的屋頂上，你需要一個工程師來剪斷鐵絲網(wǎng)；
Sawed-off霰彈槍在紐約Corleone總部（就是你自己家），正門右手邊的灌木叢后面，找個小弟用火燒開一條路……
lv3：
AK-47在古巴的Battaglia Masonry，找一件有梯子的屋子（進(jìn)門左手邊），爬梯子下到地下，順著地道走就行；
.501 Magnum Enforcer在古巴的Battaglia Quarry Chop Shop附近的燈塔里，地圖上可以看見那個燈塔；
Delta M1911手槍在佛羅里達(dá)Mangano家族總部的二樓；
Vintovka SR-98步槍在古巴Almeida家族總部二樓的一張桌子上；
Schofield Semi-auto（連發(fā)霰彈，我的最愛）在佛羅里達(dá)的Global Storage Chop Shop所在的小島，往右走有個小倉庫，就在里面