You didnt even give a description. Like Hex! said, (who put his name in every possible place you can) this map has too many mistakes. Plus its not a minigames map, since you dont have a description and screenshots dont say anything. So, I'm disapproving for wrong section.
The map isn't really great, as "Hex!" said, try something smaller... my first map, is a easy small map. Try to make something like this using tutorials and the tutorial that popped up when u first started SDK.
If you want to see my map, this is the link:
Pros: Good Idea. Other than that nothing.
Cons:This map is full-bright*, there is no buyzone for the Terrorists, there are only 5 ct spawns, the spawns are too spread out, some textures are stretched and others are overlapping, the vent near the bank is unrealistic(it takes to long to break) and the doors are way to big and uneven. Also this map is not a MG(Minigames) map. It should be called fy_Bank not mg_bank.
Improvements: None. Sorry, but this map has too many mistakes. Just trash it and start over.
Notes: Good idea but maybe a little too hard for a beginner like you. Try something smaller and build from there. Also whenever you're making maps please use the light entity. It makes the map look a lot more professional.
*There are no light entities and the game adds its own making it way too bright.