OOH! I love frontline maps. I even tried a failed one myself, so here's my feedback:
The gamemode is overall confusing, especially wen this happened:
and then I couldn't get the package:
Another thing is, maybe you could make these models dynamic, and animate them: For example, this tank
Here's a boring old valve tutorial for it:
https://developer.valvesoftware.com/wiki/Prop_dynamic
This is a bit random, and could use some more story behind it:
So is this:
Now for some positive feedback!
I like how these two deal little tics of damage:
And this full med pack
(though a bit extreme, I would use medium) is very well placed In the mine field:
Overall the layout is pretty good, keep it up.