Ghost has been concealing his identity under his hallmark skull mask to maintain anonymity, though it seems like that won't be possible anymore, as a photo showing his full face has been leaked.
And recently, thanks to Redditor Crafty-Astronomer905, an unmasked image of Ghost was revealed to the public. Apparently, the Reddit user (or other data miners) was able to find the character model within the shooter files.
Call of Duty: Vanguard is installed through the Battle App. To be able to install you must log in to the Battle App using the Battle account you purchased or claimed your copy of the game on. If you purchased the game in the Battle Shop, your order must be complete.
With a Vanguard Personal Investor Account, you can buy or sell managed funds via Vanguard Online. Purchases or sales of managed fund units are subject to the terms and conditions of the relevant managed fund.