Put it in `tf/scripts/vscripts/force_mvm_ups.nut` and run it with `script_execute force_mvm_ups.nut`.

mvm_in_2fort.nut

local ent = null;

local cashGain = 50;
local cashLose = 25;
local cashScaler = 0.10

ShowMessage("Loading ForceEnableUpgrades VScript...");
ForceEnableUpgrades(2);

while( ent = Entities.FindByClassname(ent, "func_upgradestation")  )
{
    ent.Destroy();
}

while( ent = Entities.FindByClassname(ent, "func_regenerate") )
{
   printl("Located: " + ent + " @ " + ent.GetCenter());
   local upgradeStation = SpawnEntityFromTable("func_upgradestation", {
        origin       = ent.GetCenter(),
        angles       = ent.GetAbsAngles(),
        model = "*21"
    })
   printl("Created: " + upgradeStation + " @ " + upgradeStation.GetCenter());
}

function OnGameEvent_player_death(params)
{
    local assister = null
    local cashAfterLoss = 0
    local assistedKill = false

    local cashOnKill = 0
    local cashOnDeath = 0

    local player = GetPlayerFromUserID(params.attacker)
    local victim = GetPlayerFromUserID(params.userid)

    if ( player != victim && victim ) {
        if ( params.assister >= 0 ) {
            assister = GetPlayerFromUserID(params.assister)
            if ( assister ) {
                assistedKill = true
            }
        }

        cashOnKill = cashGain + ( victim.GetCurrency() * cashScaler )

        if ( assistedKill ) {
            player.AddCurrency( floor(cashOnKill * 0.80) )
            assister.AddCurrency( floor(cashOnKill * 0.20) )
        } else {
            player.AddCurrency(cashOnKill)
        }

        cashOnDeath = cashLose + ( victim.GetCurrency() * cashScaler )
        cashAfterLoss = ( victim.GetCurrency() - cashOnDeath )

        if ( cashAfterLoss > 0 ) {
            victim.RemoveCurrency( cashOnDeath )
        } else {
            victim.SetCurrency( 0 )
        }
    }
}

__CollectGameEventCallbacks(this)