You can unlock free skins for guns and characters in the new season of COD mobile season one. All you have to do is log in everyday for 24 days and watch ads.
Free Skin #1 Battle Hardened- Axon
This character skin in one of the rare skins in the mobile platform and before this season you had to pay to unlock this skin. In this season this skin is an epic one which you can unlock after logging in everyday for 24 days and you will get this skin.
Free Skin #2 Type 25- Defibrillator
This Type 25 skin is the the one that you only have to watch a few ads in order to get enough tokens for your lucky spin. You can either spin and win it or by collecting enough tokens to buy it from the store using those tokens. You will need 1000 tokens to buy it from the in-game store.
Free Skin #3 Fennec- Midnight
This Fennec skin can be unlocked by reaching the multiplayer rank Master 3, after which you will be rewarded this epic gun skin for free. You can learn about the ranking system of the game in the previous article.
Free Skin #4 Reznov- Winterwood
This epic character skin can be unlocked by reaching the battle royale rank Master 3, after which you will unlock this skin. You will have to reach master level in order to reach Master 3. You will also be able to unlock more epics like the avatar frame etc in the higher rank levels of battle royal and multiplayer.
Free Skin #5 Ghost- Stealth
This epic Ghost skin can be unlocked by simply linking your COD mobile account to the Activision account after which you will receive the skin in the mail.