Vandalic warrior 5th century

[Robert Vermaat]

Can there be any influence of north african enviroment or roman tradition on his equipment?

Remember your warrior did not come just from across the Rhenus, but he and his parents, maybe even his grandparents, had been within the Roman Empire (Gaul, then long in Spain) for decades? He would have had many Roman influences, since his group had been fighting for the Romans and against them during that time, and probably he was equipped by the Roman armouries at least once, but all adjustments would have been come from Roman/Hispanic territory. And all Geiseric did afterwards was live on, off and from Roman territories, becoming Romanised fast.

Most groups (not to mention documentary makers!) make the mistake of thinking that Germanic groups somehow kept their old equipment and stuff for decades...

Therefore, a Roman helmet if any, if a spangenhelm, not a Baldenheim.
If armour (and that became scarce fast!), a hamata, or a squamata. Lamellar? Well, if travelling with Alan cavalry, otherwise it's a bit alien for these parts.
Long sword - spatha.
Spiky shield boss? Well why not, a pointed would also do fine I'd say.

If you're going for the 'Germanic' look, your guy is not a soldier of Geiseric.