1.Administrative Department:650R$+Riot Shield:100R$+CI:35R$(before)

2.IA/ISD:300R$/450R$+Riot Shield:100R$

3.RRT:600R$+Riot Shield:00R$

4:Minigun:750R$+Riot Shield:100R$

5:Riot Shield:100R$+Omni Clearance/Level 4/Level 5:400R$(Lv4 and Lv5 not for sale anymore)

6.Save robux for Site Director

So then, I would go for CI (250 robux), the riot shield (100 robux), no omni because Lv-5 is omni and as we have 649 robux left and your highest amount is 999 robux RRT for that cloak (best ability) or if they don't get one IA/ISD and as they're 300/400 we have 349 or 399 so we then save for our next bit of money and, assuming we're getting another 999 robux, buy another class (don't buy minigun a bit of CI grinding gets you equal guns) or save even more for SiD/05/TA - SiD for the announcements, 05 for a new gun and SiD perks and TA for a better 05 gun and SiD perks but while there can only be 1 SiD/TA per server there can be multiple 05s so I personnaly would choose 05 or, if I don't have enough, SiD.

At the moment RRT ($600), but ISD ($400) will become really good in the next update because they are adding interrogations and more stuff (just check the Discord Announcements)