2-3K.......Ringgit? No way. Unless you have 8-10 years experience, you get about $2500-$2800. Perks? Depends on which company you work with. SPH probably offers the best perks and etc.
As for freelance, you must be have good command of English to sell your works with an article to your story.
As most photojournalist in Singapore works in a company, so press pass is given for full access. Freelance photojournalist can get press pass too but you need to apply for it.