Creating 2000 users Id only using script (no exchange)

Question

I have received a request to create 200 users\
Here are the details
Purpose: To be used for the ABC load testing (new version) that use AD authentication
Create new NT Domain users: (they can be created through script)
Rules:
- Create 2000 new NT users
- No mailbox should be created/assigned
- No rights should be provided to the users, they should only have possibility to be used for AD authentication
- The users should have sequential names like ABC_LT0000 ==> ABC_LT1999
- The passwords should never expire and not change.
- The passwords should be communicated as a list of user/pwd separately to me: 
- The user can be made part of a different organisationel unit to ease management of them.
This is urgent. please advise

Answer 1

I found this script and i modified it
#csv format needs to be as follows: 
#Alias,Firstname, Lastname,Name,UPN,OUpath,Database,password
#change the name and path of the csv file as required. 
$users = Import-CSV E:\Users\Hpssira\blkusr.csv 
$users| foreach
$Password = -AccountPassword ( ConvertTo-SecureString 'Pass@1234' -AsPlainText -Force) -Enabled $true
new-mailbox -name $_.name -alias $_.alias -FirstName $_.Firstname -LastName $_.Lastname -userPrincipalName  $_.UPN -database $_.Database -OrganizationalUnit $_.OUpath -Password $Password –ResetPasswordOnNextLogon $true
Missing expression after unary operator '-'.
At E:\users\hpssira\tired.ps1:10 char:14
+ $Password = - <<<< AccountPassword ( ConvertTo-SecureString 'Pass@1234' -AsPlainText -Force) -Enabled $true
    + CategoryInfo          : ParserError: (-:String) [], ParseException
    + FullyQualifiedErrorId : MissingExpressionAfterOperator
I am using my Last name First name as my ALias. is that correct or should i change it to samaccountname