Glide towards the large rock in the distance and land on the grey circle on the ground. You should find some enemies in the same area; take them out to unlock the chest on top of the grey circle.

Modeling of a B61-7 nuclear detonation over Chicago, Illinois. The yellow circle denotes the fireball radius, inner grey circle the moderate damage blast radius, orange circle the thermal ...

A map showing modelling of a B61-7 nuclear detonation over Paris. The yellow circle denotes the fireball radius, the inner grey circle the moderate damage blast radius, the orange circle the ...