You know how to read bro ?
He said that UI can't hold 4 icons only 3 are allowed and u are talking about weapon slots...
Its not only GUI that cannot hold more than 3 icons in it but also grid key keyboard system where buttons T, G and B are ment to be used to buy 1st, 2nd and 3rd upgrade.
Also I understant that it is possible to change UI so that i could handle for example 6 upgrades but this is not needed and current system is what makes faction cool and unique among other factions (or at least it did before the system was copy-pasted for brits...)
But actually I find it ok that no more than 2 factions share same system:
- soviets and ostheer have upgrades that can be bought on friendly territory
- okw has upgrades that can be boughte anywhere
- usf and ukf have in base upgrades
Seems logical too me.