Yep, Far_Cry2_Fan is correct, some map icons can cover overs others. I had that problem with the hunts, but started using the legend to select the icons I wanted.
Now I have not completed all the Rakyat, so maybe there is more to that, but it is worth using the legend to show only the red stars and see.
I can assure you that I have completed them all:
1. Dashing Assault - 705
2. Hide and seek - 275
3. Bone Crusher - 325
4. Lord of Firepower - 400
5. Frag me up - 345
6. Bull's Eye - 340
7. Overheat - 595
8. Furious Gun - 810
9. Point Blank - 805
10. Transport Destruction - 305
11. Hostile Swamp - 695
12. Decimation Barrage - 340
Thats my score for each of the rakyat challanges and yet it says 11/12 completed. It's bugged. Just like everything else in this game.